SOLUTION The third term of a geometric progression is nine times the first term.The sum of the first four terms is K times the

year 13-unit test 1 10 คะแนน 10 คะแนน *Iเ;น !เมล * [email protected] * a=7, d=12 a=-7, d=12 a=-7, d=16 a=7, d=8 Write your full name * Phonchita candan Find the sum of the arithmetic series. * -1957 -1597 -1975 1975 -1795 * 10 คะแนน 5586 6586 5856 5763 6656 The third term of a geometric progression is nine times the first term. 10 คะแนน The sum of the first four terms is k times the first term. Find the possible value of k * -40 -20 24 20 Find the sum to infinity of the following geometric series of 10 คะแนน 1+0.1+0.01+0.001+... * 1.11111111 1.101010 2 1.0111 * 10 คะแนน 22 terms, sum is 1120 22 terms, sum is 1210 21 terms, sum is 1212 21 terms, sum is 2110 write down the common ratio and the eighth term. 7, 21, 63, 189, .... * 10 คะแนน r=3, 15309 r=3, 13418 r=7, 13418 r= 7, 15324 * 10 คะแนน 17, d=-4 5, d= -5 7, d= -4 15, d=3 12, d= -3 The first term of a geometric progression is 50 and the second term is 10 คะแนน −30. Find the fourth term. * -18 -12.5 -10.8 -10 Find the sum of the first eight terms of this geometric series of 10 คะแนน 3+6+12+24+... * 625 765 725 667 )ง+เนา-ตอบใ23น )ง 2าม)งร5ส7านใน Google ฟอ9ม reCAPTCHA ความเ;น)วน<ว=อ>หนด แบบฟอ9มABกสDางEนภายใน Chindamanee School English Program รายงานการละเHด ฟอ9ม