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ความสัมพันธ์และฟังก์ชัน

Published by kajankew135, 2021-04-28 04:13:44

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     ⌦        ⌦   ⌫       ⌦   ⌫ ⌦ 

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4 ⌫ ⌫  ⌦  ⌫          Ÿ¨‡¼–‡µ¦ršÁ¸ Ž¥¸ œ Ä®o A ^1,2,3` ¨³ B ^2,4` ™µo Á…¥¸ œ‡¼°n œ´ —´ ץĮ­o ¤µ·„˜ª´ ®œoµÁžœ} ­¤µ„· …°Š A ¨³­¤µ„· ˜ª´ ®¨´ŠÁž}œ­¤µ„· …°Š B ‹³ Á„—· „µ¦‹´‡¼Ån —šo ´ŠÊ ®¤— 6 ‡n¼ ­¤µ„· …°ŠÁŽ˜ A ­¤µ·„…°ŠÁŽ˜ B ‡n°¼ œ´ —´ 2 (1,2) 1 4 (1,4) 2 (2,2) 2 4 (2,4) 2 (3,2) 3 4 (3,4) ÁŽ˜…°Š‡n°¼ œ´ —´ š´ŠÊ ®¤—‡º° ^(1,2), (1,4), (2,2), (2,4), (3,2), (3,4)` Á¦¸¥„ÁŽ˜œª¸Ê nµŸ¨‡¼–‡µ¦šr Á¸ Ž¸¥œ…°ŠÁŽ˜ A ¨³ÁŽ˜ B Á…¥¸ œÂšœ—ªo ¥ AuB œ´œÉ ‡º° AuB ^(1,2), (1,4), (2,2), (2,4), (3,2), (3,4)` ˜´ª°¥nµŠ Ä®o A ^1,3,5` ¨³ B ^2,4` ‹ŠÁ…¸¥œ AuB , BuA , AuA ¨³ BuB Â‹„‹Š­¤µ„· ª·›š¸ ε AuB {(a, b) / a  A š b  B} —´Šœ´œÊ AuB ^(1,2), (1,4), (3,2), (3,4), (5,2), (5,4)` BuA {(a, b) / a  B š b  A} —´ŠœÊœ´ BuA ^(2,1), (2,3), (2,5), (4,1), (4,3), (4,5)` AuA {(a, b) / a, b  A} —´Šœ´œÊ AuA ^(1,1), (1,3), (1,5), (3,1), (3,3), (3,5), (5,1), (5,3), (5,5)` BuB {(a, b) / a, b  B} —´ŠœÊœ´ BuB ^(2,2), (2,4), (4,2), (4,4)`

⌦ 5 ⌦ ĝ„·‹„¦¦¤šÉ¸ 1 1. Ä®o A ^1,2` , B ^10,20` ‹Š®µ Au B ¨³ B u A ¨³‹Îµœªœ­¤µ„· …°Š Au B ¨³ B u A ÁŽ˜ Au B Ášnµ„´ÁŽ˜ B u A ®¦°º ŤÁn ¡¦µ³Á®˜Ä» — 2. Ä®o A ^1,2,3` , B ^3,4,5` ¨³ C ^2,4` ‹Š®µÁŽ˜˜n°ÅžœÂʸ ¨³¦³»ÁŽ˜šÉ¸Ášnµ„´œ 2.1 Au (B ˆ C) 2.2 (A u B) ˆ (A u C) 2.3 Au (B ‰ C) 2.4 (A u B) ‰ (Au C) 2.5 Au (B  C) 2.6 (A u B)  (A u C) 3. ¦µo œ…µ¥…oµªÂ„Š¦µ‡µž¦³®¥´— ¤„¸ ´ …µo ª­°Šž¦³Á£šÄ®Áo ¨°º „‡º°Â„ŠÂ¨³Ÿ´—Ÿ´„ ™µo ¦oµœÂ®nŠœÊ¤¸ ¸ „Š 4 œ—· ‡°º „ŠÁ…¥¸ ª®ªµœ „Š®¤¼ÁšÃ¡ „Š…¸ÁÊ ®¨„È „Š­o¤ ¨³¤¸Ÿ´—Ÿ´„ 2 œ·—‡°º Ÿ—´ Ÿ„´ o»Š Ÿ—´ ‡³œµo ¨„¼ ‡oµ…°Š¦oµœ…oµªÂ„Š‹³Á¨°º „­ŠÉ´ „´…oµª ŽŠÉ¹ ž¦³„°—ªo ¥Â„ŠÂ¨³Ÿ´—Ÿ´„°¥µn Š¨³®œ¹ŠÉ œ—· ŗ„o ɸ 

6 ⌫ ⌫  ⌦  ⌫          Ÿœ„µ¦‹—´ „µ¦Á¦¸¥œ¦oš¼ ¸É 2 Á¦ºÉ°Š ‡ªµ¤­¤´ ¡œ´ ›r ´Êœ¤´›¥¤«„¹ ¬µžše ¸É 4 ª·µ ‡–·˜«µ­˜¦r Áª¨µ 2 ´ÉªÃ¤Š Ÿ¨„µ¦Á¦¥¸ œ¦šo¼ ‡É¸ µ—®ª´Š ­µ¤µ¦™Á…¸¥œ‡ªµ¤­¤´ ¡´œ›r˜µ¤ÁŠ°Éº œÅ…š„ɸ µÎ ®œ—Ä®Åo —o 1. ‹»—ž¦³­Š‡r„µ¦Á¦¸¥œ¦¼o 1. Á…¥¸ œ‡ªµ¤­¤´ ¡´œ›˜r µ¤ÁŠÉ°º œÅ…š¸É„µÎ ®œ—Ä®oŗo 2. °„‡ªµ¤®¤µ¥…°Š‡ªµ¤­¤´ ¡œ´ ›r‹µ„ A Ş B ŗo 3. °„‡ªµ¤®¤µ¥…°Š‡ªµ¤­´¤¡œ´ ›Är œ A ŗo 2. œª‡ªµ¤‡—· ®¨´„ ‡ªµ¤­¤´ ¡œ´ ›r®¤µ¥™¹Š ÁŽ˜…°Š‡°n¼ œ´ —´ ×¥š‡É¸ ¼n°´œ—´š°É¸ ¥n¼ÄœÁŽ˜Á—¥¸ ª„œ´ ®¦°º 2 ÁŽ˜œ´Êœ‹³¤¸ ‡ªµ¤­¤´ ¡œ´ ›rÁ„¥¸É ª…°o Š„´œ£µ¥Ä˜„o ‘Á„–”°r ¥µn ŠÄ—°¥nµŠ®œŠÉ¹ 3. Áœ°ºÊ ®µ­µ¦³ 1. ‡ªµ¤­´¤¡œ´ ›r®¤µ¥™¹Š ÁŽ˜…°Š‡n¼°œ´ —´ ×¥šÉ¸‡n¼°´œ—´ š°¸É ¥¼Än œÁŽ˜Á—¸¥ª„´œ®¦º° 2 ÁŽ˜œœÊ´ ‹³¤¸ ‡ªµ¤­´¤¡´œ›rÁ„É¥¸ ª…°o Š„œ´ £µ¥Ä˜o„‘Á„–”°r ¥nµŠÄ—°¥µn Š®œÉ¹Š 2. r Ážœ} ‡ªµ¤­¤´ ¡´œ›r‹µ„ A Ş B „˜È n°Á¤°Éº r Ážœ} ­´ ÁŽ˜…°Š AuB 3. r Áž}œ‡ªµ¤­´¤¡´œ›Är œ A „˜È °n Á¤Éº° r Áž}œ­´ÁŽ˜…°Š A uA 4. „¦³ªœ„µ¦‹—´ „µ¦Á¦¥¸ œ¦¼o 1. ‡¦¼¥„˜´ª°¥nµŠºÉ°…°Šœ´„Á¦¸¥œ­°Š‡œÄ—ÇĜ®o°ŠÁ¦¸¥œ…¹Êœ¤µ ¨oªÄ®onª¥„´œ¡·‹µ¦–µ®µ‡ªµ¤ Á„¥¸É ª…o°Š„œ´ ¦³®ªµn Š‡œš´ÊŠ­°Š Áœn “Ážœ} Á¡º°É œ„´œ” “­Š¼ „ªnµ” “Á˜¥Ê¸ „ªµn ” ²¨² ‹µ„œœÊ´ ¥„˜ª´ °¥nµŠ Áž}œ‹µÎ œªœ­°Š‹Îµœªœ Áœn 4 „´ 2 ¨ªo Ä®œo ´„Á¦¥¸ œªn ¥„´œ¡·‹µ¦–µªµn ‹µÎ œªœšŠ´Ê ­°ŠÁ„ɸ¥ª…°o Š„œ´ °¥µn ŠÅ¦µo Š ŽÉŠ¹ °µ‹°°„¤µ®¨µ¥Ç  Áœn “4 ¤µ„„ªµn 2” “4 Ášµn „´ 2 ‡¼– 2” ®¦°º “ 2 Áž}œ‡µn ¦µ„š¸É­°ŠšÉÁ¸ žœ} ª„…°Š 4”

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8 ⌫ ⌫  ⌦  ⌫          ĝ‡ªµ¤¦š¼o ɸ 2 šœ·¥µ¤…°Š‡ªµ¤­¤´ ¡œ´ ›r Ĝ¸ª·˜ž¦³‹µÎ ªœ´ ¨³Äœ‡–˜· «µ­˜¦r Á¦µ¤„´ ¡­™µœ„µ¦–rš¸É­—Š‡ªµ¤­´¤¡œ´ ›r¦³®ªµn Š­¤µ„· …°ŠÁŽ˜ 2 ÁŽ˜°¥n¼Á­¤° Ánœ ¦·¬š´ ¦´Á®¤µž¼ ¨°È „ž¼™œœÂ®nŠ®œÉ¹Š ¦´Á®¤µž¼¨È°„™œœ—ªo ¥¦µ‡µ 600 µš ˜n°˜µ¦µŠÁ¤˜¦ ­µÎ ®¦´¡œÊº š¸É 50 ˜µ¦µŠÁ¤˜¦…ʹœÅž ­™µœ„µ¦–œr Â¸Ê ­—Š‡ªµ¤­´¤¡´œ›¦r ³®ªµn Š…œµ—…°Š ¡ºÊœš¸Éš¸‹É ³ž¼ ¨È°„ž¼™œœ„´‡µn čo‹µn ¥šÉ¸˜o°Š‹nµ¥Ä®Ÿo ¦o¼ ´ Á®¤µ ™µo „µÎ ®œ—…œµ—¡œºÊ š¸É ¥°n ¤¦³»‡nµÄo‹µn ¥Å—o —Š´ ­—ŠÄœ˜µ¦µŠ ¡ÊºœšÉ¸(˜µ¦µŠÁ¤˜¦) ‡nµÄ‹o µn ¥(µš) 50 30,000 60 36,000 70 42,000 80 48,000 „µ¦‹´‡¼n¦³®ªnµŠ¡ºÊœšÉ¸Â¨³‡nµÄo‹nµ¥Äœ„µ¦ž¼¨È°„ž¼™œœ Á…¸¥œÂ­—ŠÄœ¦¼ž‡¼n°´œ—´Å—o ‡º° ( 50, 30,000 ), ( 60 , 36,000 ), ( 70, 42,000 ), ( 80, 48,000 ) œ°„‹µ„œ¸Ê °µ‹Â­—Š‡ªµ¤­¤´ ¡´œ›¦r ³®ªµn Š¡Êœº š¸ÂÉ ¨³‡µn č‹o nµ¥Äœ„µ¦ž¼¨È°„ž¼™œœ—oª¥­¤„µ¦Å—o ×¥„ε®œ—˜ª´ ž¦­°Š˜´ªÂž¦Âšœ­ÉŠ· šÁ¸É ¦µœÎµ¤µ‹´‡„n¼ ´œ ™oµÄ®o x šœ¡Êœº ššÉ¸ ɸ‹³ž¼ ¨°È „ž™¼ œœ ®œªn ¥Ážœ} ˜µ¦µŠÁ¤˜¦ ¨³ y šœ‡µn č‹o µn ¥Äœ„µ¦ž¼ ¨È°„ž¼™œœ ‹³¡ªnµ y 600 x Á¤°ºÉ x t 50 ‡ªµ¤­¤´ ¡œ´ ›rÁžœ} Á¦É°º Š­µÎ ‡´…°Š‡–·˜«µ­˜¦r Ĝ‡–˜· «µ­˜¦¤r ´„„¨µn ª™Š¹ „µ¦Á„¥¸É ª…°o Š„´œ¦³®ªnµŠ ­¤µ·„…°ŠÁŽ˜ 2 ÁŽ˜£µ¥Ä˜o„‘Á„–”rŽŠ¹É °¥Än¼ œ¦ž¼ ­¤„µ¦®¦°º °­¤„µ¦ ‡ªµ¤­´¤¡´œ›Ár žœ} ÁŽ˜ŽŠ¹É ¤­¸ ¤µ„· Áž}œ‡¼°n ´œ—´ šœ·¥µ¤…°Š‡ªµ¤­¤´ ¡œ´ ›Ár žœ} —´ŠœÊ¸ r Ážœ} ‡ªµ¤­¤´ ¡´œ›r‹µ„ A Ş B „Ș°n Á¤°ºÉ r Áž}œ­´ÁŽ˜…°Š AuB ‹µ„šœ¥· µ¤ ‹³Á®Èœªµn ‡ªµ¤­¤´ ¡œ´ ›rÁž}œÁŽ˜ŽŠÉ¹ ¤­¸ ¤µ·„Ážœ} ‡¼°n œ´ —´ „µ¦Á…¸¥œ‡ªµ¤­¤´ ¡œ´ ›r‹Š¹ Á…¸¥œÄœ¦¼žÁŽ˜…°Š‡n¼°´œ—´ ×¥Á…¥¸ œÂÂ‹„‹Š­¤µ„· ®¦°º °„ÁŠÉº°œÅ……°Š­¤µ·„„ÅÈ —o

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10 ⌫ ⌫  ⌦  ⌫         

⌦ 11 ⌦

12 ⌫ ⌫  ⌦  ⌫          ĝ„·‹„¦¦¤šÉ¸ 2 1. „ε®œ— A ^1,2,3,4` ‹ŠÁ…¸¥œ‡ªµ¤­´¤¡´œ›˜r n°ÅžœÊ¸ Â‹„‹Š­¤µ·„¨³Â­—Š„¦µ¢ …°Š‡ªµ¤­¤´ ¡œ´ ›Är œÁŽ˜ A 1.1 r1 ^(x, y)  A u A / y x  1` 1.2 r2 ^(x, y)  A u A / y ! x  1` 1.3 r3 ^(x, y)  Au A / y  x  1` 1.4 r4 1.5 r5 ^(x, y)  A u A / y d x` ^(x, y)  A u A / y t 5  x` 1.6 r4 ˆ r5 2. ˜µ¦µŠÂ˜¨n ³˜µ¦µŠ˜n°Åžœ¸Ê ­—Š‡¼n°œ´ —´µŠ‡¼°n ´œ—´ šÉÁ¸ ž}œ­¤µ„· …°Š‡ªµ¤­¤´ ¡œ´ ›r ¨³˜µ¤ ¨µÎ —´ ŽŠÉ¹ Ážœ} ‡ªµ¤­´¤¡´œ›Är œ A ¨³ A ^0,1,2,3,...` 1) ‹ŠšµÎ ˜µ¦µŠÄ®­o ¤¦¼ –r 2) ®µ­¤„µ¦šÄ¸É o°›· µ¥‡ªµ¤­´¤¡´œ›r—Š´ „¨nµª 3) Á…¥¸ œÁŽ˜…°Š‡ªµ¤­´¤¡´œ›Âr °„ÁŠÉº°œÅ……°Š­¤µ·„ÄœÁŽ˜ 2.1 X0 1 2 3 8 20 100 Y 0 7 14 21 28 2.2 X 0 1 2 3 4 8 20 100 Y6 7 8 9 2.3 X 0 1 2 3 4 8 20 100 Y1 3 5 7 2.4 X 0 1 2 3 4 6 20 100 Y 1 2 5 10 17 3. ‹ŠÁ…¥¸ œ„¦µ¢…°Š‡ªµ¤­¤´ ¡œ´ ›r˜°n Şœ¸Ê ^ `3.1 r1 (x, y)  I u I / y x2  1 3.2 r2 ^(x, y)  I u I / y 2x  3` 3.3 r3 ^(x, y)  I u I / y x  1`

⌦ 13 ⌦ Ÿœ„µ¦‹—´ „µ¦Á¦¥¸ œ¦š¼o ɸ 3 Á¦É°º Š ×Á¤œÂ¨³Á¦œ‹r…°Š‡ªµ¤­´¤¡œ´ ›r ´Êœ¤´›¥¤«„¹ ¬µžše ¸É 4 ª·µ ‡–˜· «µ­˜¦r Áª¨µ 2 Éª´ äŠ Ÿ¨„µ¦Á¦¸¥œ¦šo¼ ɸ‡µ—®ªŠ´ ­µ¤µ¦™°„œ·¥µ¤‡Îµªµn ×Á¤œ ¨³Á¦œ‹r ­µ¤µ¦™®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š‡ªµ¤­´¤¡´œ›rš„¸É µÎ ®œ—Ä®Åo —o 1. ‹—» ž¦³­Š‡r„µ¦Á¦¸¥œ¦¼o 1. ®µÃ—Á¤œ…°Š‡ªµ¤­¤´ ¡´œ›šr ¸„É 宜—Ä®oŗo 2. ®µÁ¦œ‹…r °Š‡ªµ¤­´¤¡œ´ ›šr „¸É µÎ ®œ—Ä®Åo —o 2. œª‡ªµ¤‡—· ®¨´„ „µ¦«¹„¬µ‡ªµ¤­¤´ ¡´œ›Är —„Șµ¤ ˜°o Š­œÄ‹…°Á…˜…°Š­¤µ„· ˜ª´ ®œoµ…°Š‡¼°n ´œ—´Äœ‡ªµ¤­´¤¡œ´ ›r ¨³…°Á…˜…°Š­¤µ„· ˜ª´ ®¨´Š…°Š‡¼n°œ´ —´Äœ‡ªµ¤­´¤¡œ´ ›r 3. ÁœÊ°º ®µ­µ¦³ Ä®o r Ážœ} ‡ªµ¤­´¤¡œ´ ›r‹µ„ A Ş B ×Á¤œ…°Š r Á…¥¸ œÂšœ—ªo ¥ Dr ‡°º ÁŽ˜…°Š­¤µ„· ˜´ª®œµo …°Šš„» ‡n°¼ œ´ —´ Ĝ r D1 = {x / XA ¨³ (x , y)  r } Á¦œ‹…r °Š r Á…¥¸ œÂšœ—ªo ¥ Rr ‡°º ÁŽ˜…°Š­¤µ·„˜ª´ ®¨Š´ …°Šš„» ‡n°¼ ´œ—´Äœ r R1 = {y / XB ¨³ (x , y)  r} 4. „¦³ªœ„µ¦‹—´ „µ¦Á¦¸¥œ¦¼o 1. ‡¦Ä¼ ®oœ´„Á¦¥¸ œªn ¥„´œ¥„˜ª´ °¥nµŠ‡ªµ¤­´¤¡œ´ ›šr ɸÁ…¥¸ œÄœ¦¼žÁŽ˜ÂÂ‹„‹Š­¤µ·„®¨µ¥Ç ˜ª´ °¥µn Š 2. Ä®oœ„´ Á¦¥¸ œÁ…¥¸ œÁŽ˜Ä®¤n ×¥ÁŽ˜š¸®É œŠÉ¹ Áž}œÁŽ˜…°Š­¤µ„· ˜´ª®œoµ…°ŠÂ˜n¨³‡¼°n ´œ—´ ¨³ÁŽ˜ šÉ­¸ °ŠÁž}œÁŽ˜…°Š­¤µ·„˜´ª®¨Š´ …°ŠÂ˜¨n ³‡¼°n œ´ —´ 3. ‡¦¼ °„Ä®œo „´ Á¦¸¥œš¦µªµn ÁŽ˜šÉ¸®œŠÉ¹ Á¦¥¸ „ªnµ ×Á¤œ…°Š‡ªµ¤­´¤¡´œ›r Á…¸¥œÂšœ—ªo ¥ Dr ¨³ÁŽ˜šÉ­¸ °ŠÁ¦¸¥„ªnµ Á¦œ‹…r °Š‡ªµ¤­´¤¡´œ›r Á…¸¥œÂšœ—oª¥ Rr

14 ⌫ ⌫  ⌦  ⌫          4. œ„´ Á¦¸¥œnª¥„´œ­¦ž» œ¥· µ¤…°ŠÃ—Á¤œÂ¨³Á¦œ‹r…°Š‡ªµ¤­´¤¡´œ›r 5. Ä®œo ´„Á¦¸¥œ«„¹ ¬µÁ¡¤·É Á˜¤· „µ¦®µÃ—Á¤œÂ¨³Á¦œ‹r…°Š‡ªµ¤­´¤¡´œ›Âr °„ÁŠÉ°º œÅ……°Š­¤µ·„ ‹µ„ĝ‡ªµ¤¦¼ošÉ¸ 3 6. Ä®oœ„´ Á¦¥¸ œ „f š„´ ¬³Ã—¥šÎµÂ f„®´—‹µ„ĝ„‹· „¦¦¤š¸É 3 5. ®¨nŠ„µ¦Á¦¸¥œ¦o¼ 1. ĝ‡ªµ¤¦¼oš¸É 3 2. ĝ„‹· „¦¦¤šÉ¸ 3 3. ®o°Š­¤—» æŠÁ¦¸¥œ 4. ­º‡oœšµŠ Internet 6. „¦³ªœ„µ¦ª´—¨³ž¦³Á¤œ· Ÿ¨ 1. ž¦³Á¤œ· Ÿ¨‹µ„„µ¦šµÎ ĝ„‹· „¦¦¤ 2. ž¦³Á¤œ· Ÿ¨‹µ„„µ¦šµÎ š—­° 7. œ´ š„¹ ®¨Š´ „µ¦­°œ ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. 8. „·‹„¦¦¤Á­œ°Âœ³ ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………….

⌦ 15 ⌦ ĝ‡ªµ¤¦šo¼ ¸É 3 ×Á¤œÂ¨³Á¦œ‹…r °Š‡ªµ¤­¤´ ¡œ´ ›r „ε®œ— A {1,2,3,4,5,6} B {1,2,3,4} ¨³ r {(x, y)  Au B / y 1 x} 2 Áž}œ‡ªµ¤­¤´ ¡´œ›r‹µ„ A Ş B Á…¸¥œ r Â‹„‹Š­¤µ·„Å—o—Š´ œ¸Ê r {(2,1), (4,2), (6,3)} ¡·‹µ¦–µÁŽ˜…°Š­¤µ„· ˜´ª®œoµ…°Š‡°n¼ œ´ —´Äœ r ‹³Å—Áo Ž˜ {2,4,6} Á¦¸¥„ÁŽ˜œª¸Ê nµ ×Á¤œ ( Domain ) …°Š r ¡·‹µ¦–µÁŽ˜…°Š­¤µ„· ˜´ª®¨´Š…°Š‡¼°n ´œ—´Äœ r ‹³Å—Áo Ž˜ {1,2,3} Á¦¥¸ „ÁŽ˜œª¸Ê µn Á¦œ‹r ( Range ) …°Š r ÁœºÉ°Š‹µ„ r Ážœ} ‡ªµ¤­¤´ ¡œ´ ›r‹µ„ A Ş B Á…¸¥œ …°Ä®­o Š´ Á„˜ªµn ×Á¤œ…°Š r Ážœ} ­´ÁŽ˜…°Š A ¨³Á¦œ‹…r °Š r Áž}œ­´ ÁŽ˜…°Š B Ä®o r Áž}œ‡ªµ¤­¤´ ¡´œ›r‹µ„ A Ş B ×Á¤œ…°Š r Á…¸¥œÂšœ—ªo ¥ Dr ‡°º ÁŽ˜…°Š­¤µ„· ˜´ª®œµo …°Šš»„‡¼°n ´œ—´ Ĝ r D1 = {x / XA ¨³ (x , y)  r} Á¦œ‹r…°Š r Á…¥¸ œÂšœ—ªo ¥ Rr ‡º°ÁŽ˜…°Š­¤µ·„˜ª´ ®¨Š´ …°Šš„» ‡n°¼ ´œ—´ Ĝ r R1 = {y / y B ¨³ (x , y)  r} ˜ª´ °¥nµŠš¸É 1 Ä®o r Áž}œ‡ªµ¤­¤´ ¡œ´ ›r “ Áž}œ˜´ªž¦³„°…°Š ” ‹µ„ A {1,2,3,4} Ş ª·›š¸ ε B {10,15,20,25} ‹Š®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š r Á…¸¥œ r °„ÁŠ°ºÉ œÅ…Å——o ´Šœ¸Ê r = { (x, y)  Au B / x  A, y  B ¨³ (x , y)  r} x Ážœ} ˜ª´ ž¦³„°…°Š y ®¤µ¥‡ªµ¤ªnµ x ®µ¦ y ¨Š˜ª´ ¨³ x  A, y  B ‹³Å—oÁŽ˜ r —´ŠœÊ¸ r {(1,10),(1,15)(1,20),(1,25),(2,10), (2,20),(3,15),(4,20)} ×Á¤œ…°Š r ‡º° Dr {1,2,3,4} Á¦œ‹…r °Š r ‡°º Rr {10 ,15,20 ,25}

16 ⌫ ⌫  ⌦  ⌫         

⌦ 17 ⌦ Á¤ºÉ°¡·‹µ¦–µ„¦µ¢…°Š r ‹³¡ªnµ­µÎ ®¦´ ˜¨n ³‹ÎµœªœÁ˜¤È x šÁɸ ž}œ‹Îµœªœ‡¼n ¥°n ¤¤‹¸ µÎ œªœ Á˜È¤ y ŽÉ¹Š y 1 x 1 ŗoÁ­¤° —Š´ œœ´Ê D1 = {xI / xA ¨³ (x , y)  r} R1 = {y / y yB ¨³ (x , y)  r} 2 ×Á¤œ…°Š r ‡º° Á¦œ‹r…°Š r ‡º° ˜ª´ °¥µn Šš¸É 3 „µÎ ®œ—‡ªµ¤­¤´ ¡œ´ ›r r ĜÁŽ˜…°Š‹Îµœªœ‹¦Š· —´Šœ¸Ê ª·›š¸ µÎ r ^(x, y)  R u R / x  2y  2 0` ‹ŠÁ…¥¸ œ„¦µ¢…°Š r ¨³®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š r „¦µ¢…°Š r Ážœ} Á­oœ˜¦Š ®µ‡n¼°œ´ —´­°Š‡°n¼ ´œ—´ šÉ¸Ážœ} ­¤µ·„…°Š r ŽŠÉ¹ Ážœ} ‹—» °¥n¼ œ „œ x ¨³‹—» °¥n¼œÂ„œ y šœ‡µn y = 0 Ĝ­¤„µ¦ x – 2 y – 2 = 0 ‹³Å—o x = 2 —Š´ œÊœ´ ‹—» œÂ„œ x ‡°º ( 2, 0 ) šœ‡µn x = 0 Ĝ­¤„µ¦ x – 2 y – 2 = 0 ‹³Å—o y = - 1 —´ŠœÊœ´ ‹—» œÂ„œ y ‡°º ( 0, - 1 ) y (2,0) x (0,-1) ‹»—š¸ÉÁ¦¥¸ Š˜°n Áœ°Éº Š„´œœÁ­oœ˜¦ŠÁž}œ­¤µ„· …°Š r ‹µ„„¦µ¢ ×Á¤œ…°Š r ‡º° D1 = {x / xA ¨³ (x , y)  r} Á¦œ‹…r °Š r ‡º° R1 = {yB ¨³ (x , y)  r} …o°­Š´ Á„˜ 1 x 1 ­¤„µ¦ x  2y  2 0 Á…¸¥œÄ®¤nŗÁo žœ} y 2 œÉ´œ‡°º r {(x, y)  R u R / y 1 x  1} 2

18 ⌫ ⌫  ⌦  ⌫          ™µo ŤÅn —Áo …¸¥œ„¦µ¢…°Š r ­µ¤µ¦™®µÃ—Á¤œÂ¨³Á¦œ‹r…°Š r ×¥¡‹· µ¦–µ­¤„µ¦ y 1 x 1 2 ¡ªnµ ­Îµ®¦´ ‹µÎ œªœ‹¦·Š x Ä—Ç ¥n°¤¤‹¸ µÎ œªœ‹¦·Š y „¨µn ª‡°º ™µo x = 2 ŗo y = 0 ™µo x > 2 ŗo y > 0 ™µo x < 2 ŗo y < 0 ×Á¤œÂ¨³Á¦œ‹r…°Š‡ªµ¤­¤´ ¡œ´ ›r r ‹Š¹ Ážœ} ÁŽ˜…°Š‹µÎ œªœ‹¦·Š ˜´ª°¥nµŠš¸É 4 Ä®o r ^(x, y)  R u R / y 4  `x2 ‹Š®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š r ª›· ¸šÎµ Á¦µ°µ‹®µÃ—Á¤œÂ¨³Á¦œ‹r…°Š r ×¥ªÁ· ‡¦µ³®‹r µ„­¤„µ¦ y 4  x2 —´Šœ¸Ê ­Îµ®¦´ ‹Îµœªœ‹¦Š· x Ä—Ç ¥°n ¤¤¸ 4  x2  R —Š´ œœÊ´ Dr {x / x R} ‹µ„­¤„µ¦ y 4  x2 ‹´—¦¼ž­¤„µ¦œÊĸ ®¤‹n ³Å—o x2 4  y ÁœÉº°Š‹µ„ x2 t 0 —Š´ œÊœ´ 4  y t 0 œÉ´œ‡º° 4 t y ‹³Å—ªo nµ yd4 Á¡¦µ³Œ³œÊœ´ Rr {y R / y d 4} ˜ª´ °¥nµŠš¸É 5 Ä®o r ^(x, y)  R u R / y x  2 ` ‹Š®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š r ª›· š¸ µÎ ­µ¤µ¦™®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š r ×¥¡‹· µ¦–µ‹µ„­¤„µ¦ y x  2 —´Šœ¸Ê ­Îµ®¦´‹µÎ œªœ‹¦·Š x Ä—Ç ¥n°¤¤¸ x  2  R ÁœÉ°º Š‹µ„ x2 t0 —Š´ œœ´Ê y t 0 ×Á¤œ…°Š r ‡º° Dr {x / x R} Á¦œ‹r…°Š r ‡º° Rr {y R / y t 0}

⌦ 19 ⌦ ĝ„·‹„¦¦¤šÉ¸ 3 1. Ä®o A ^x  I /  2 d x d 2` , B ^y  I /  4 d y d 4` ‹Š®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š‡ªµ¤­´¤¡´œ›˜r °n Şœ¸Ê 1.1 r1 ^(x, y)  Au B / y x` 1.2 r2 ^(x, y)  Au B / y  x` 1.3 r3 ^(x, y)  Au B / y ! x` 2. ‹ŠÁ…¸¥œ„¦µ¢Â¨³¦³»Ã—Á¤œÂ¨³Á¦œ‹…r °Š‡ªµ¤­´¤¡œ´ ›Är œÁŽ˜ I ˜°n Şœ¸Ê 2.1 r1 ^(x, y)  I u I / x  y 2` 2.2 r2 2.3 r3 ^ `(x, y)  I u I / y 2x2  3 2.4 r4 ^ `(x, y)  I u I / x y2 2.5 r5 ^(x, y)  I u I / y x  2` ^(x, y)  I u I / x y ` 3. ¦ž¼ ­¸ÁÉ ®¨É¸¥¤Ÿœº Ÿoµ¦¼ž®œÉ¹Š¤¸¡ºÊœš¸É 36 ˜µ¦µŠÁ¤˜¦ ™µo Ä®o d šœ‡ªµ¤¥µª ¨³ w šœ‡ªµ¤„ªoµŠ …°Š¦¼ž­¸ÉÁ®¨¸¥É ¤Ÿœº Ÿµo œÊ¸ ®œªn ¥Ážœ} Á¤˜¦Â¨³Áž}œ‹ÎµœªœÁ˜¤È ª„ ‹Š®µ‡ªµ¤­´¤¡´œ›r r š¤É¸ ­¸ ¤µ„· Ážœ} ‡n¼ °´œ—´ ( d, w ) ¡¦o°¤š´ŠÊ Á…¸¥œ„¦µ¢…°Š r ¨³¦³Ã» —Á¤œÂ¨³Á¦œ‹…r °Š r 4. ‹Š®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š‡ªµ¤­¤´ ¡´œ›˜r n°ÅžœÊ¸ 4.1 r1 ®­(x, y)  R u R / y 2 x  2¾½ ¯ 3 ¿ 4.2 r2 4.3 r3 ^(x, y)  R u R / y x  1` ^(x, y)  R u R / x 4.4 r4 2` ­®(x, y)  R u R / y 4.5 r5 ¯ 1 x ½¾ 4.6 r6 2 ¿ 4.7 r7 ^(x, y)  R u R / x 4.8 r8 2y` 4.9 r9 ^(x, y)  R u R / y `x  1 4.10 r10 ^(x, y)  R u R / y `9  x2 ^(x, y)  R u R / y `x2  3 ^(x, y)  R u R / y2 ^(x, y)  R u R / y x` `x3  1

20 ⌫ ⌫  ⌦  ⌫          Ÿœ„µ¦‹—´ „µ¦Á¦¸¥œ¦šo¼ ɸ 4 Á¦º°É Š °·œÁª°¦r­…°Š‡ªµ¤­¤´ ¡œ´ ›r Êœ´ ¤´›¥¤«¹„¬µžše ɸ 4 ª·µ ‡–·˜«µ­˜¦r Áª¨µ 2 ´ªÉ äŠ Ÿ¨„µ¦Á¦¸¥œ¦šo¼ ¸‡É µ—®ª´Š ®µ°·œÁª°¦­r …°Š‡ªµ¤­´¤¡´œ›šr Ʉ¸ µÎ ®œ—Ä®Åo —o 1. ‹—» ž¦³­Š‡r„µ¦Á¦¥¸ œ¦o¼ 1. ®µ°·œÁª°¦r­…°Š‡ªµ¤­´¤¡œ´ ›rš„ɸ 宜—Ä®Åo —o 2. ®µÃ—Á¤œÂ¨³Á¦œ‹r…°Š°œ· Áª°¦­r …°Š‡ªµ¤­¤´ ¡´œ›šr „¸É µÎ ®œ—Ä®Åo —o 2. œª‡ªµ¤‡—· ®¨„´ ™oµ­¨´˜µÎ ®œnŠ…°Š­¤µ·„˜´ª®œoµ„´­¤µ·„˜´ª®¨´Š…°ŠÂ˜n¨³‡n¼°´œ—´Äœ‡ªµ¤­´¤¡´œ›r‹³ ŗo‡ªµ¤­¤´ ¡œ´ ›rÄ®¤n Á¦¸¥„ªµn °œ· Áª°¦r­…°Š‡ªµ¤­¤´ ¡´œ›r 3. ÁœÊ°º ®µ­µ¦³ 1. °œ· Áª°¦r­…°Š‡ªµ¤­´¤¡´œ›r r Á…¥¸ œÂšœ—ªo ¥ r 1 ®¤µ¥™Š¹ ‡ªµ¤­¤´ ¡œ´ ›šr ¸ÉÁ„—· ‹µ„„µ¦­¨´š¸É…°Š ­¤µ·„˜´ª®œµo ¨³­¤µ·„˜ª´ ®¨´ŠÄœÂ˜n‡°¼n œ´ —´šÁ¸É žœ} ­¤µ„· …°Š r 2. ×Á¤œ…°Š°·œÁª°¦r­…°Š‡ªµ¤­¤´ ¡´œ›r Ášnµ„´Á¦œ‹…r °Š‡ªµ¤­¤´ ¡´œ›r¨³Á¦œ‹…r °Š°œ· Áª°¦r­ …°Š‡ªµ¤­¤´ ¡œ´ ›rÁšµn „´ ×Á¤œ…°Š‡ªµ¤­´¤¡œ´ ›r 4. „¦³ªœ„µ¦‹´—„µ¦Á¦¸¥œ¦o¼ 1. ‡¦Ä¼ ®oœ„´ Á¦¸¥œªn ¥„œ´ ¥„˜´ª°¥nµŠ‡ªµ¤­¤´ ¡œ´ ›šr ɸÁžœ} ÁŽ˜šÉÁ¸ …¸¥œÂÂ‹„‹Š­¤µ·„®¨µ¥Ç ÁŽ˜ ¨oªÄ®oœ´„Á¦¸¥œÁ…¸¥œÁŽ˜Á®¨nµœÊ´œÄ®¤n ×¥­¨´šÉ¸¦³®ªnµŠ­¤µ·„‡¼n°´œ—´˜´ª®œoµÂ¨³˜´ª®¨´Š…°Šš»„‡n¼ °œ´ —´ Ĝ˜n¨³ÁŽ˜ ¨oª‡¦¼ °„œ´„Á¦¥¸ œªµn ÁŽ˜…°Š‡°n¼ œ´ —´ šœ¸É „´ Á¦¥¸ œÁ…¥¸ œ…œÊ¹ ¤µÄ®¤nœœÊ´ Á¦¥¸ „ªnµ °œ· Áª°¦r­…°Š‡ªµ¤­´¤¡´œ›rœ´ÊœÇ Á…¸¥œÂšœ—ªo ¥ r 1 2. œ´„Á¦¸¥œnª¥„´œ­¦ž» œ¥· µ¤…°Š°œ· Áª°¦­r …°Š‡ªµ¤­¤´ ¡´œ›r 3. ‡¦¼ššªœ„µ¦®µÃ—Á¤œÂ¨³Á¦œ‹r…°Š‡ªµ¤­¤´ ¡´œ›r ¨oªÄ®oœ„´ Á¦¥¸ œ®µÃ—Á¤œÂ¨³Á¦œ‹…r °Š °·œÁª°¦­r …°Š‡ªµ¤­¤´ ¡œ´ ›œr Ê´œÂ¨ªo Áž¦¸¥Áš¸¥„œ´

⌦ 21 ⌦ 4. Ä®oœ„´ Á¦¥¸ œªn ¥„œ´ ®µ…°o ­¦»žÄ®Åo —ªo nµÃ—Á¤œ…°Š°œ· ª°¦­r …°Š‡ªµ¤­´¤¡´œ›Ár šµn „´ Á¦œ‹…r °Š‡ªµ¤ ­¤´ ¡´œ›r¨³Á¦œ‹…r °Š°œ· Áª°¦r­…°Š‡ªµ¤­´¤¡œ´ ›rÁšµn „´Ã—Á¤œ…°Š‡ªµ¤­¤´ ¡´œ›r 5. Ä®œo „´ Á¦¥¸ œ«¹„¬µÁ¡¤É· Á˜·¤‹µ„ĝ‡ªµ¤¦oš¼ ɸ 4 6. Ä®oœ„´ Á¦¸¥œšÎµÂ „f ®´—‹µ„ĝ„·‹„¦¦¤š¸É 4 5. ®¨Šn „µ¦Á¦¸¥œ¦¼o 1. ĝ‡ªµ¤¦šo¼ ɸ 4 2. ĝ„·‹„¦¦¤š¸É 4 3. ®o°Š­¤—» æŠÁ¦¸¥œ 4. Internet 6. „¦³ªœ„µ¦ª´—¨³ž¦³Á¤·œŸ¨ 1. ž¦³Á¤·œŸ¨‹µ„„µ¦šµÎ  „f ®—´ 2. ž¦³Á¤·œŸ¨‹µ„„µ¦šµÎ š—­° 7. œ´ š¹„®¨Š´ „µ¦­°œ ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. 8. „‹· „¦¦¤Á­œ°Âœ³ ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………….

22 ⌫ ⌫  ⌦  ⌫          ĝ‡ªµ¤¦¼ošÉ¸ 4 °·œÁª°¦r­…°Š‡ªµ¤­´¤¡œ´ ›r Ä®o A {0,1,2,3,4,5} , B {0,1,2,3,4,5,6,7,8,9} ¨³ r Áž}œ‡ªµ¤­´¤¡œ´ ›‹r µ„ A Ş B r {(x, y)  A u B / y 2x} ‹³Å—o r {(0,0), (1,2), (2,4), (3,6), (4,8)} ×Á¤œ…°Š r ‡°º {0,1,2,3,4} Á¦œ‹r…°Š r ‡º° {0,2,4,6,8} ™µo ­¨´˜µÎ ®œnŠ…°Š­¤µ·„˜´ª®œµo „´ ­¤µ„· ˜´ª®¨Š´ …°ŠÂ˜n¨³‡°n¼ œ´ —´ Ĝ r ‹³Å—‡o ªµ¤­´¤¡œ´ ›r Ä®¤n Á¦¥¸ „ªµn °œ· Áª°¦r­…°Š‡ªµ¤­¤´ ¡œ´ ›…r °Š r Á…¥¸ œÂšœ—oª¥ r 1 r 1 {(0,0), (2,1), (4,2), (6,3), (8,4)} ×Á¤œ…°Š r 1 ‡º° {0,2,4,6,8} Á¦œ‹r…°Š r 1 ‡º° {0,1,2,3,4} °·œÁª°¦r­…°Š‡ªµ¤­¤´ ¡œ´ ›…r °Š r Áž}œ‡ªµ¤­´¤¡´œ›‹r µ„ B Ş A ¨³Á…¥¸ œ r 1 °„ ÁŠÉ°º œÅ……°Š­¤µ„· —Š´ œ¸Ê r 1 {(x, y)  B u A / y x } 2 šœ¥· µ¤…°Š°œ· Áª°¦­r …°Š‡ªµ¤­´¤¡´œ›r ‡º° ™oµ r Ážœ} ‡ªµ¤­´¤¡´œ›r‹µ„ A Ş B °œ· Áª°¦r­…°Š‡ªµ¤­´¤¡´œ›…r °Š r Á…¸¥œÂšœ—ªo ¥ r 1 ‡º°‡ªµ¤­´¤¡œ´ ›r‹µ„ B Ş A ŽÉŠ¹ Áž}œÁŽ˜šžÉ¸ ¦³„°—ªo ¥‡¼n°œ´ —´ (y, x) ­µÎ ®¦´š»„Ç (x, y)  r œ´Éœ‡º° r 1 {(y, x) /( x, y)  r} ™oµÁŽ˜…°Š‡ªµ¤­´¤¡´œ›r r Áž}œÁŽ˜°œ´œ˜r ¨³Á…¸¥œÂÂ‹„‹Š­¤µ·„ŤnŗoÁnœ r {(x, y)  R u R / y x2 } „µ¦®µ°œ· Áª°¦­r …°Š‡ªµ¤­¤´ ¡œ´ ›…r °Š r Ä®„o ¦³šÎµÃ—¥­¨´š¸É¦³®ªnµŠ ˜ª´ ž¦ x ¨³ y Ĝ­¤„µ¦ ‹³Å—o°œ· Áª°¦r­…°Š‡ªµ¤­´¤¡´œ›r…°Š r Ĝ˜µn ŠÇ —´Š˜°n Şœ¸Ê 1) r 1 {(x, y)  R u R / x y 2} 2) r 1 {(x, y)  R u R / y  x} 3) r 1 {( y, x)  R u R / y x2} 4) r 1 {( y, x)  R u R / x  y}

⌦ 23 ⌦ ˜ª´ °¥nµŠš¸É 1 Ä®o r {(x, y)  R u R / y 2x  3} ‹Š®µ r 1 ª·›¸šÎµ ®µ­¤„µ¦šÉĸ „o 宜—„µ¦‹´ ‡n¼¦³®ªnµŠ x ¨³ y …°Š r 1 —ªo ¥„µ¦­¨´š¸É¦³®ªµn Š x ¨³ y Ĝ­¤„µ¦…°Š r ­¤„µ¦…°Š r ­¤„µ¦…°Š r 1 y 2x  3 x 2y  3 ‹´—¦¼ž­¤„µ¦…°Š r 1 —Š´ œÊ¸ x 2y  3 x  3 2y —Š´ œÊœ´ r 1 1x3 y 1 x  3} „¦µ¢…°Š r 22 22 {(x, y)  R u R / y {(x, y)  R u R / y 2x  3} Ážœ} Á­oœ˜¦Š ¤‹¸ »—˜´—œÂ„œ x ‡º° ( 3 ,0) ¨³‹—» ˜—´ œÂ„œ y ‡°º (0,3) 2 ÁœÉº°Š‹µ„ r 1 Ážœ} °·œÁª°¦r­…°Š‡ªµ¤­¤´ ¡´œ›…r °Š r —Š´ œœÊ´ ‹—» (0, 3) ¨³ (3,0) 2 °¥n¼ œ„¦µ¢…°Š r 1 y y=2x-3 y=x (0, 3) y 1x3 2 22 (-3,0) x ( 3 ,0) 2 (0,-3) „¦µ¢…°Š r ¨³ r 1 ‹³­¤¤µ˜¦„´œ Á¤°ºÉ Áš¥¸ „´ Á­œo ˜¦Š y x „¨nµªŠµn ¥Ç ªnµ ™µo ¡´ „¦³—µ¬˜µ¤ÂœªÁ­oœ˜¦Š y x „¦µ¢…°Š r ¨³ r 1 ‹³š´„´œ­œš·

24 ⌫ ⌫  ⌦  ⌫          ˜´ª°¥µn ŠšÉ¸ 2 Ä®o r ^(x, y)  R u R / y x  2` ‹Š®µ r 1 ¡¦o°¤šŠ´Ê ¦³Ã» —Á¤œÂ¨³Á¦œ‹r ª·›š¸ µÎ ­¤„µ¦š„¸É µÎ ®œ— r 1 Á„—· ‹µ„„µ¦­¨´š¦É¸ ³®ªnµŠ x ¨³ y Ĝ­¤„µ¦ y x 2 ­¤„µ¦šÉ¸„ε®œ— r 1 ‡º° x y  2 —´ŠœÊœ´ r 1 {(x, y)  R u R / x y  2} ‹µ„­¤„µ¦ x y  2 ‹´—¦¼ž­¤„µ¦Ä®¤‹n ³Å—o x2 y ­Îµ®¦´š„» ‹µÎ œªœ‹¦Š· y Ä—Ç y t 0 —Š´ œœ´Ê œ´œÉ ‡º° x2 t0 x t 2 ×Á¤œ…°Š r 1 {x  R / x t 2} Á¦œ‹r…°Š r 1 {y / y  R} ‹µ„­¤„µ¦…°Š r 1 x y 2 ×¥šœ¥· µ¤…°Š‡nµ­¤¼¦–r Á…¥¸ œ­¤„µ¦…oµŠ˜oœÅ—o—Š´ œ¸Ê X = y  2 Á¤°ºÉ y t 0  y  2 Á¤°ºÉ y  0 „¦µ¢…°Š‡ªµ¤­¤´ ¡œ´ ›r r 1 Áž}œ—´Šœ¸Ê y x = y – 2 Á¤É°º yt 0 (0,2) x (-2,0) (0,-2) x = - y – 2 Á¤Éº° y< 0

⌦ 25 ⌦ ˜ª´ °¥nµŠš¸É 3 Ä®o r {(x, y)  R u R / y x2 1} ‹Š®µ r 1 ¡¦°o ¤šÊŠ´ ¦³»Ã—Á¤œÂ¨³Á¦œ‹r ª›· š¸ µÎ …°Š°·œÁª°¦r­…°Š‡ªµ¤­´¤¡œ´ ›r ­¤„µ¦š¸É„ε®œ— r 1 Á„—· ‹µ„„µ¦­¨´ š¸É¦³®ªµn Š x ¨³ y Ĝ­¤„µ¦ y x2  1 ­¤„µ¦šÉ„¸ 宜— r 1 ‡°º x y2  1 x 1 y2 —Š´ œœÊ´ r 1 {(x, y)  R u R / y 2 x  1} ­Îµ®¦´‹Îµœªœ‹¦Š· y Ä—Ç y2 t 0 —Š´ œÊ´œ x  1 t 0 œÉ´œ‡º° x t 1 ×Á¤œ…°Š r 1 {x  R / x t 1} Á¦œ‹…r °Š r 1 {y / y  R} ˜ª´ °¥nµŠšÉ¸ 4 Ä®o r {(x, y)  R u R / y3 x  1} ‹Š®µ r 1 ¡¦°o ¤šŠ´Ê ¦³Ã» —Á¤œÂ¨³Á¦œ‹r ª›· ¸šµÎ …°Š°·œÁª°¦r­…°Š‡ªµ¤­´¤¡´œ›r ­¤„µ¦š„¸É 宜— r 1 Á„—· ‹µ„„µ¦­¨´ š¦É¸ ³®ªnµŠ x ¨³ y Ĝ­¤„µ¦ y3 x  1 ‹³Å—­o ¤„µ¦š„¸É 宜— r 1 ‡º° x3 y  1 x3 1 y r 1 {(x, y)  R u R / x 3  1 y} ¡·‹µ¦–µ‡°n¼ ´œ—´ µŠ‡¼n…°Š r 1 x -3 -2 -1 0 1 2 3 y x3  1 -26 -7 0 1 2 9 28 ‹³Å—ªo nµ {x / x  R} ×Á¤œ…°Š r 1 {y / y  R} Á¦œ‹r…°Š r 1

26 ⌫ ⌫  ⌦  ⌫         

⌦ 27 ⌦ Ÿœ„µ¦‹´—„µ¦Á¦¸¥œ¦o¼š¸É 5 Á¦ºÉ°Š „¦µ¢…°Š‡ªµ¤­¤´ ¡œ´ ›r ´œÊ ¤´›¥¤«„¹ ¬µžše ¸É 4 ª· µ ‡–·˜«µ­˜¦r Áª¨µ 2 Éª´ äŠ Ÿ¨„µ¦Á¦¥¸ œ¦š¼o ¸É‡µ—®ªŠ´ ­µ¤µ¦™Á…¥¸ œ„¦µ¢…°Š‡ªµ¤­´¤¡œ´ ›rš„ɸ µÎ ®œ—Ä®Åo —o 1. ‹—» ž¦³­Š‡r„µ¦Á¦¥¸ œ¦o¼ ­µ¤µ¦™Á…¸¥œ„¦µ¢…°Š‡ªµ¤­´¤¡œ´ ›šr „¸É 宜—Ä®oŗo 2. œª‡ªµ¤‡·—®¨´„ Ĝ¦³Â„œ¤¤» Œµ„­µ¤µ¦™‹´ ‡¼n®œ¹ÉŠ˜°n ®œŠ¹É ¦³®ªnµŠ‡°n¼ œ´ —´…°Š‹µÎ œªœ‹¦·Š (x, y) „´‹—» Ĝ ¦³œµ ץĮo x Áž}œ¡„· —´ ¦„¨³ y Ážœ} ¡„· ´—®¨Š´ Á¤É°º R Áž}œÁŽ˜…°Š‹µÎ œªœ‹¦·ŠÂ¨³‡ªµ¤­¤´ ¡œ´ ›r r Ážœ} ­´ÁŽ˜…°Š R x R „¦µ¢…°Š‡ªµ¤­¤´ ¡œ´ ›r r ‡°º ÁŽ˜…°Š‹»—Äœ¦³œµ ×¥šÂɸ ˜n¨³‹»—šœ­¤µ„· …°Š‡ªµ¤­´¤¡´œ›r r 3. ÁœÊº°®µ­µ¦³ „¦µ¢…°Š‡ªµ¤­¤´ ¡œ´ ›r Ážœ} ÁŽ˜…°Š‹—» Ĝ¦³œµÃ—¥šÂɸ ˜n¨³‹»—šœ­¤µ·„…°Š‡ªµ¤­¤´ ¡œ´ ›r ×¥¤¸®¨µ¥¦¼žÂ —Š´ œ¸Ê 1) ¦Á· ª–šÂ¸É ¦ÁŠµ Ážœ} „¦µ¢…°Š‡ªµ¤­´¤¡´œ›r 2) Á­œo š¹ ­—Šªµn š„» ‹—» œÁ­œo „¦µ¢Ážœ} ­¤µ·„…°Š‡ªµ¤­´¤¡´œ›r 3) Á­oœž¦³ ­—Šªnµ š„» ‹—» œÁ­oœ„¦µ¢Å¤nÁžœ} ­¤µ„· …°Š‡ªµ¤­´¤¡´œ›ršŠÊ´ ®¤— 4) ‹»—š¹ ­—Šªnµ ‹—» œœ´Ê ¦ª¤°¥Ä¼n œ„¦µ¢ 5) ‹»—„¨ªŠ ­—Šªnµ ‹—» œœÊ´ Ťn¦ª¤°¥n¼Äœ„¦µ¢ 4. „¦³ªœ„µ¦‹—´ „µ¦Á¦¸¥œ¦o¼ 1. ‡¦¼Â¨³œ´„Á¦¸¥œnª¥„´œššªœÁ„ɸ¥ª„´¦³œµ‹Îµœªœ ¨³„µ¦„ε®œ—¡·„´—…°Š‹»—ŽÉ¹Š „ε®œ—×¥‡¼°n œ´ —´ ˜µn ŠÇ œ¦³œµ‹µÎ œªœ 2. Ä®oœ´„Á¦¸¥œ¥„˜ª´ °¥µn Š‡ªµ¤­´¤¡´œ›r r šÉÁ¸ žœ} ­´ ÁŽ˜…°Š R x R Ž¹ÉŠÁ…¥¸ œÄœ¦ž¼ Â‹„‹Š ­¤µ„· Á¤ºÉ° R Ážœ} ÁŽ˜…°Š‹µÎ œªœ‹¦·Š

28 ⌫ ⌫  ⌦  ⌫          3. Ä®œo „´ Á¦¥¸ œœÎµ‡n°¼ œ´ —´ŽŠÉ¹ Áž}œ­¤µ„· ĜÁŽ˜œ´ÊœÇ ŞÁ…¥¸ œÂšœ—ªo ¥‹—» œ¦³œµ‹µÎ œªœ ¨ªo °„œ„´ Á¦¥¸ œªµn ÁŽ˜…°Š‹»—œ¦³œµ‹µÎ œªœ‡º°„¦µ¢…°Š‡ªµ¤­¤´ ¡œ´ ›œr Ê´œ 4. Ä®oœ„´ Á¦¥¸ œ«¹„¬µÁ¡¤É· Á˜·¤‹µ„ĝ‡ªµ¤¦¼oš¸É 5 5. œ´„Á¦¥¸ œšµÎ  f„®´—‹µ„ĝ„‹· „¦¦¤šÉ¸ 5 6. œ„´ Á¦¥¸ œªn ¥„œ´ ­¦»ž­µ¦³­Îµ‡´ …°Š„¦µ¢…°Š‡ªµ¤­´¤¡´œ›r 5. ®¨Šn „µ¦Á¦¸¥œ¦o¼ 1. ĝ‡ªµ¤¦š¼o ¸É 5 2. ĝ„‹· „¦¦¤šÉ¸ 5 3. ®o°Š­¤»—æŠÁ¦¥¸ œ 4. ­º ‡œo šµŠ Internet 6. „¦³ªœ„µ¦ª´—¨³ž¦³Á¤·œŸ¨ 1. ž¦³Á¤œ· Ÿ¨‹µ„„µ¦šÎµÂ „f ®—´ 2. ž¦³Á¤œ· Ÿ¨‹µ„„µ¦šÎµÂš—­° 7. ´œš„¹ ®¨´Š„µ¦­°œ ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. 8. „·‹„¦¦¤Á­œ°Âœ³ ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………….

⌦ 29 ⌦ ĝ‡ªµ¤¦¼šo ɸ 5 „µ¦Á…¸¥œ„¦µ¢…°Š¢{Š„r œ´ ‡ª¦°µ«¥´ ¦¼ž„¦µ¢…°Š¢{Š„r œ´ šÉÁ¸ ¦µš¦µ¤µ„n°œÂ¨ªo —Š´ œ¸Ê 1) ¢Š{ „r´œÁ­oœ˜¦Š y = ax + b , a > 0 y = ax + b 2) ¢Š{ „r ´œ„ε¨´Š­°Š y = ax2 , a > 0 (0 , 0) 3) ¢Š{ „rœ´ „µÎ ¨Š´ ­µ¤ y = ax3 , a > 0 y x (0 , 0)

30 ⌫ ⌫  ⌦  ⌫          4) ¢{Š„r´œ Hyperbola xy = c , c > 0 y x (0 , 0) 5) ¢Š{ „r ´œ‡nµ­´¤¦¼ –r y= x y x (0 , 0) 6) ¢{Š„rœ´ ¦µ„š¸É 2 y= x y x (0 , 0)

⌦ 31 ⌦ „¦µ¢…°Š‡ªµ¤­¤´ ¡´œ›r Ážœ} ÁŽ˜…°Š‹—» Ĝ¦³œµÃ—¥š¸É˜¨n ³‹—» šœ­¤µ„· …°Š‡ªµ¤­´¤¡´œ›r 1) Á­œo š¹ ­—Šªnµš»„‹—» œ„¦µ¢Ážœ} ­¤µ·„…°Š‡ªµ¤­´¤¡œ´ ›r ˜ª´ °¥nµŠ 1) y = x y š»„‹»—œÁ­œo ˜¦Š y = x Ážœ} ­¤µ„· …°Š‡ªµ¤­¤´ ¡œ´ ›r x (0 , 0) 2) Á­oœž¦³ ®¤µ¥™Š¹ š„» ‹—» œÁ­oœ„¦µ¢ ŤÁn ž}œ­¤µ„· …°Š‡ªµ¤­¤´ ¡œ´ ›r ˜´ª°¥nµŠ 2) y > x y š»„‹—» Á®œº°Á­œo „¦µ¢ Ážœ} ­¤µ„· …°Š‡ªµ¤­´¤¡œ´ ›r x 3) ‹—» š¹ ®¤µ¥™Š¹ ‹—» œœÊ´ Ç ¦ª¤°¥nļ œ„¦µ¢ ˜ª´ °¥µn Š 3) y t x y y t x š»„‹»—œÁ­œo „¦µ¢ ¨³Á®œ°º Á­oœ„¦µ¢ Áž}œ­¤µ„· …°Š‡ªµ¤­´¤¡œ´ ›r x (0 , 0)

32 ⌫ ⌫  ⌦  ⌫          4) ‹—» „¨µŠ ­—Šªµn ‹—» œœÊ´ Ťn°¥nļ œ„¦µ¢ ˜ª´ °¥µn Š 4) y > x y (1 , 1)  ‡ªµ¤­¤´ ¡œ´ ›r (1 , 1) x (0 , 0) ˜´ª°¥nµŠ ‹ŠÁ…¥¸ œ„¦µ¢‡ªµ¤­´¤¡´œ›˜r n°Åžœ¸Ê 1) r = { (x , y)  RxR y = x2 } y y = x2 x (0 , 0) 2) r = { (x , y)  RxR y > x2 } y x (0 , 0)

⌦ 33 ⌦ 3) r = { (x , y)  RxR y t x2 } y y = x2 x (0 , 0) 4) r = { (x , y)  RxR y < x2 } y x (0 , 0) 5) r = { (x , y)  IxI y = | x | } y X X y =|x| XX XX XX Xx (0 , 0)

34 ⌫ ⌫  ⌦  ⌫          6) r = { (x , y)  RxR | y > | x | } y x (0 , 0) 7) r = { (x , y)  RxR | y t | x | } y y = |x| x 8) r = { (x , y)  IxI | y = - | x | } y X x XX XX XX XX

⌦ 35 ⌦ 9) r = { (x , y)  IxI | y = - | x | + 2 } y x XX XX XX XX X (0 , 2) (0 , 0) 10) r = { (x , y)  IxI y = x2+ 2 } y y = x2 + 2 (0 , 2) x

36 ⌫ ⌫  ⌦  ⌫          ĝ„‹· „¦¦¤šÉ¸ 5

⌦ 37 ⌦ 4. ‹ŠÁ…¸¥œ„¦µ¢…°Š‡ªµ¤­¤´ ¡´œ›r r ={(x,y)RxR|y=x+1} x -3 -2 -1 0 1 2 3 y9 5. ‹ŠÁ…¸¥œ„¦µ¢…°Š‡ªµ¤­¤´ ¡´œ›r r ={(x,y)RxR|1d x4} 6. Ä®œo „´ Á¦¸¥œÁ…¥¸ œ„¦µ¢…°Š‡ªµ¤­¤´ ¡´œ›˜r °n ޜʸ 6.1 r ={(x,y)AxA|y=x} Á¤°ºÉ A = {1,2,3,4,5} 6.2 r ={(x,y)AxA|y=x-1} Á¤°Éº A = {3,4,5,6,7}

38 ⌫ ⌫  ⌦  ⌫          6.3 r ={(x,y)RxR|y=4x} 6.4 r ={(x,y)RxR|y=x+3} 7. Ä ®oœ„´ Á¦¥¸ œÁ…¸¥œ„¦µ¢…°Š r ¨³ r 1 r = {(-3,-2),(-2,-1),(2,3),(3,4),(4,5)} r 1 =…………………………………… 8. Ä®oœ„´ Á¦¥¸ œÁ…¥¸ œ„¦µ¢…°Š r ¨³ r 1 r = {(x,y)RxR|y=x+3} r 1 = {(x,y)RxR|y=………}

⌦ 39 ⌦ Ÿœ„µ¦‹—´ „µ¦Á¦¸¥œ¦šo¼ ¸É 6 Á¦°Éº Š ‡ªµ¤®¤µ¥…°Š¢{Š„r œ´ ´œÊ ¤›´ ¥¤«„¹ ¬µžše ¸É 4 ª· µ ‡–˜· «µ­˜¦r Áª¨µ 2 ªÉ´ äŠ Ÿ¨„µ¦Á¦¸¥œ¦š¼o ¸É‡µ—®ªŠ´ ­µ¤µ¦™°„Å—oªµn ‡ªµ¤­¤´ ¡œ´ ›rš¸É„µÎ ®œ—Ä®Áo žœ} ¢Š{ „r œ´ ®¦°º Ťn 1. ‹»—ž¦³­Š‡„r µ¦Á¦¸¥œ¦o¼ °„Å—ªo µn ‡ªµ¤­´¤¡´œ›šr ɸ„µÎ ®œ—Ä®oÁžœ} ¢Š{ „rœ´ ®¦º°Å¤n 2. œª‡ªµ¤‡—· ®¨„´ ¢Š{ „rœ´ Ážœ} ‡ªµ¤­´¤¡œ´ ›šr ¤É¸ ‡¸ –» ­¤˜´ ·ÁŒ¡µ³ªµn š„» ‡n°¼ œ´ —´šÁ¸É žœ} ­¤µ·„…°Š‡ªµ¤­¤´ ¡œ´ ›r ™oµ¤¸ ­¤µ„· ˜´ª®œµo Á®¤º°œ„œ´ ¨ªo ­¤µ„· ˜ª´ ®¨Š´ ˜o°ŠÅ¤n˜µn Š„œ´ 3. ÁœÊ°º ®µ­µ¦³ šœ¥· µ¤ ‡ªµ¤­¤´ ¡´œ›r r ‹³Áž}œ¢{Š„r´œ f „Șn°Á¤É°º ™µo ( x , y )  f ¨³ ( x , z )  f ¨oª y=z 4. „¦³ªœ„µ¦‹—´ „µ¦Á¦¥¸ œ¦¼o 1. ‡¦¼Â¨³œ„´ Á¦¸¥œššªœÁ¦°ºÉ Š‡ªµ¤­´¤¡´œ›r 2. Šn œ´„Á¦¸¥œ„¨»n¤¨³ 5 ‡œ ‡¦„¼ 宜—‡ªµ¤­´¤¡œ´ ›r˜°n Şœ¸Ê Ä®oœ„´ Á¦¥¸ œ¡‹· µ¦–µ‡ªµ¤­¤´ ¡´œ›r ˜n°ÅžœÊ¸ r1 = {(1,2),(2,5),(4,2),(3,4)} r2 = {(2,1),(5,3),(6,5),(7,3)} r3 = {(1,2),(1,3),(2,4),(3,5)} r4 = {(2,1),(3,1),(4,2),(5,3)} r5 = {(2,3),(3,4),(3,5),(2,5)} r1 , r2 , r4 Áž}œ¢Š{ „rœ´ r3 ,r5 ŤÁn žœ} ¢{Š„rœ´ 3. Ä®oœ„´ Á¦¸¥œ®µ¨´„¬–³¦ªn ¤…°Š‡ªµ¤­´¤¡´œ›ršÉÁ¸ žœ} ¢Š{ „r´œ ¨³‡ªµ¤Â˜„˜nµŠ…°Š‡ªµ¤­´¤¡œ´ ›r š¸ÅÉ ¤nÁžœ} ¢Š{ „r ´œ

40 ⌫ ⌫  ⌦  ⌫          4. ‡¦Â¼ ¨³œ´„Á¦¸¥œ­¦»ž‡ªµ¤®¤µ¥…°Š¢Š{ „r ´œ 5. ‡¦„¼ µÎ ®œ—‡ªµ¤­´¤¡œ´ ›r°„ÁŠ°Éº œÅ…˜n°ÅžœÊ¸ ^ `1. r1 (x, y) / y x2 2. r2 ^(x, y) / y 2x  1` ^ `3. r3 (x, y) / y x3 4. r4 ^(x, y) / y x ` ^ `5. r5 (x, y) / x y2 ^ `6. r6 (x, y) / x2  y2 1 ¨ªo Ä®oœ´„Á¦¸¥œÂŠn ‡ªµ¤­¤´ ¡´œ›°r °„Ážœ} 2 „¨¤n» ץĮo °„Á„–”šr ¸ÄÉ Äo œ„µ¦ÂnŠ‡ªµ¤ ­´¤¡´œ›r Ĝ…–³šš¸É µÎ „‹· „¦¦¤‡¦°¼ µ‹Âœ³œµÎ Ä®oœ„´ Á¦¥¸ œÂnŠ‡ªµ¤­¤´ ¡´œ›Ár ž}œ 2 „¨»¤n ‡º° ‡ªµ¤­´¤¡œ´ ›r Ĝ…o° 1 , 2 , 3 , 4 „´ ‡ªµ¤­´¤¡œ´ ›Är œ…o° 5 , 6 6. ‡¦Â¼ ¨³œ´„Á¦¥¸ œnª¥„œ´ ­¦ž» ¨„´ ¬–³…°Š‡ªµ¤­´¤¡œ´ ›šr ÉÁ¸ žœ} ¢Š{ „r œ´ 7. Ä®oœ„´ Á¦¸¥œ«„¹ ¬µÁ¡É¤· Á˜¤· ‹µ„ĝ‡ªµ¤¦¼oš¸É 6 8. Ä®œo „´ Á¦¸¥œšµÎ  „f ®—´ ‹µ„ĝ„‹· „¦¦¤š¸É 6 5. ®¨Šn „µ¦Á¦¥¸ œ¦o¼ 1. ĝ‡ªµ¤¦oš¼ ɸ 6 2. ĝ„·‹„¦¦¤šÉ¸ 6 3. ®o°Š­¤—» æŠÁ¦¸¥œ 6. „¦³ªœ„µ¦ª´—¨³ž¦³Á¤œ· Ÿ¨ 1. ž¦³Á¤·œŸ¨‹µ„„µ¦šÎµÂ f„®´— 2. ž¦³Á¤·œŸ¨‹µ„„µ¦šµÎ š—­° 7. œ´ š¹„®¨´Š„µ¦­°œ ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. 8. „‹· „¦¦¤Á­œ°Âœ³ ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………….

⌦ 41 ⌦ ĝ‡ªµ¤¦o¼š¸É 6 œª‡·—Á„¥¸É ª„´ ¢{Š„rœ´ Ä®¡o ‹· µ¦–µ‡ªµ¤­´¤¡´œ›r˜°n ޜʸ Ä®o r1 ‡º°‡ªµ¤­¤´ ¡œ´ ›r…°Š‹µÎ œªœŒ´ …°Š¨°˜Á˜°¦¦r ¸ ¨³¦µ‡µ…µ¥˜°n Œ´…°Š¡°n ‡µo …µ¥ž¨¸„ ‡œ®œŠÉ¹ r1 {(1,45), (1,50), (2,90), (2,100 ), (3,135 ), (3,150 ), (4,180 ), (4,200 )} r2 ‡º°‡ªµ¤­´¤¡´œ›r¦³®ªnµŠ‹ÎµœªœÂŸnœ…°Š„µ¦­ÎµÁœµÁ°„­µ¦Â¨³‡nµ­ÎµÁœµ¦µ‡µ (µš) ˜n° ‹µÎ œªœÂŸœn —´Š˜µ¦µŠ˜°n Şœ¸Ê ‹µÎ œªœÂŸnœ 1 2 3 4 5 6 7 8 9 10 11 12 … 100 ¦µ‡µ(µš) 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 … 50.00 ‹³Å—o r2 {(1,0.50), (2,1.00), (3,1.50), (4,2.00),..., (100 ,50.00)} Á…¥¸ œ…o°¤¨¼ ‹µ„˜µ¦µŠÁžœ} ÁŽ˜Â°„ÁŠºÉ°œÅ… ŗo—Š´ œÊ¸ r2 {(x, y)  I  u R / y 0.50 x} Á¤º°É ¡‹· µ¦–µ‡ªµ¤­´¤¡œ´ ›r r1 ‹³Á®œÈ ªµn ¦µ‡µ…°Š¨°˜Á˜°¦¦r …¸ °Š¡°n ‡µo …µ¥ž¨¸„‡œœœ´Ê Œ´¨³ 45 µšµo Š 50 µšµo Š ‹³Á®œÈ ªµn ¤‡¸ °n¼ œ´ —´ Áœn ( 1, 45) ¨³ ( 1 , 50 ) °¥Ä¼n œ r1 ŽÉ¹Šš´ÊŠ­°Š°œ´ —´ œ¤Ê¸ ­¸ ¤µ·„ ˜´ª®œµo Ášµn „´œ‡°º 1 ˜n­¤µ„· ˜´ª®¨Š´ ˜nµŠ„œ´ ‡°º 45 ¨³ 50 ĜšµÎ œ°ŠÁ—¥¸ ª„œ´ ­Îµ®¦´ ‡n°¼ ´œ—´ °œºÉ Ç ¡‹· µ¦–µÂŸœ£µ¡…°Š r1 r1 45 50 1 90 2 100 3 135 4 150 180 200

42 ⌫ ⌫  ⌦  ⌫          ‹µ„Ÿœ£µ¡ r1 ‹³Á®œÈ ªµn ¤­¸ ¤µ·„˜´ª®œoµµŠ˜ª´ ‹´ ‡„n¼ ´­¤µ„· ˜ª´ ®¨´Š¤µ„„ªµn ®œ¹ÉŠ˜´ª Á¤°ºÉ ¡‹· µ¦–µ ‡ªµ¤­¤´ ¡œ´ ›r r2 ‹³Á®Èœªµn š„» ‡°n¼ œ´ —´ šÉ¸°¥Ä¼n œ r2 ¤¸˜´ª®œoµ˜µn Š„œ´ ¡‹· µ¦–µÂŸœ£µ¡…°Š r2 r2 0.50 1.00 1 1.50 2 . 3 . . 50.00 . 100 ¨´„¬–³…°Š‡ªµ¤­¤´ ¡´œ›r r2 Áž}œ¢{Š„r´œ ˜‡n ªµ¤­´¤¡´œ›r r1 ŤÁn ž}œ¢Š{ „r ´œ šœ¥· µ¤ ¢{Š„rœ´ ‡º°‡ªµ¤­´¤¡œ´ ›šr ¤É¸ ¸‡–» ­¤´˜· ™µo ‡¼°n ´œ—´­°Š‡¼nÄ—Ç ¤­¸ ¤µ·„˜ª´ ®œµo …°Š ‡¼n°´œ—´ Á®¤°º œ„´œÂ¨ªo ­¤µ„· ˜ª´ ®¨Š´ …°Š‡°¼n œ´ —´œÊœ´ ˜o°ŠÅ¤˜n µn Š„´œ

⌦ 43 ⌦ ĝ„‹· „¦¦¤š¸É 6 1. ‹Š¡·‹µ¦–µªµn ‡ªµ¤­´¤¡œ´ ›r˜°n ޜʸÁžœ} ¢Š{ „r œ´ ®¦º°Å¤n 1.^(1,2),(2,3),(3,4),(5,6)` ˜°…………………. 2. ^(1,2),(3,4),(3,7),(4,3)` ˜°…………………. 3. ^(2,4),(3,4),(3,4),(5,6)` ˜°…………………. 4. ^(2,4),(4,6),(6,8),(7,8)` ˜°…………………. 5. ^(2,1),(3,1),(5,1),(1,1)` ˜°…………………. 2. Ä®œo „´ Á¦¸¥œ¡‹· µ¦–µªnµ‡ªµ¤­¤´ ¡œ´ ›r˜n°ÅžœÊÁ¸ ž}œ¢Š{ „r ´œ®¦º°Å¤n 1. ®¯­(x,y)/ y 1 ¿¾½ ˜°…………………. x 2. ^(x,y)/ x y2 1` ˜°…………………. 3. ^(x,y)/ y x2  5` ˜°…………………. 4. ^(x,y)/ x y2` ˜°…………………. 5. ®¯­(x,y)/ y x 1 1¿¾½ ˜°………………….  6. ^(x,y)/ y 2  x` ˜°…………………. 7. ^(x,y)/ x y2  2x` ˜°…………………. 3. Ä®œo „´ Á¦¥¸ œ­¦ž» ‡ªµ¤®¤µ¥…°Š‡ªµ¤­¤´ ¡œ´ ›ršÉÁ¸ ž}œ¢Š{ „r œ´ ¨³‡ªµ¤­´¤¡œ´ ›rš¸ÅÉ ¤Án ž}œ¢Š{ „rœ´ ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. ………………………………………………………………………………………………………….. …………………………………………………………………………………………………………..


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