CU-BCA-SEM-I-Mathematics

4. Which of the following statement is correct? a. p ∨ q ≡ q ∨ p b. ¬(p ∧ q) ≡ ¬p ∨ ¬q c. (p ∨ q) ∨ r ≡ p ∨ (q ∨ r) d. All of these 5. p ↔ q is logically equivalent to ________ a. (p → q) → (q → p) b (p → q) ∨ (q → p) c. (p → q) ∧ (q → p) d. (p ∧ q) → (q ∧ p) 6. (p → q) ∧ (p → r) is logically equivalent to ________ a. p → (q ∧ r) b. p → (q ∨ r) c. p ∧ (q ∨ r) d. p ∨ (q ∧ r) Answers 401 CU IDOL SELF LEARNING MATERIAL (SLM)

1-d, 2-b, 3-a. 4-d, 5-c, 6-a 15.8 REFERENCES References book ● Kenneth H. Rosen, “Discrete Mathematics and its Applications”, 7th Edition, Tata McGraw – Hill Pub. Co. Ltd, New Delhi, 2011. ● Vittal, P.R, “Allied Mathematics”, Reprint,Margham Publications, Chennai. ● Venkata chalapathy, S.G, “Allied Mathematics”, Margham Publications, Chennai. Textbook references ● Singaravelu, A. “Allied Mathematics”, Meenakshi Agency, Chennai. ● Thomas Koshy, “Elementary Number Theory with Applications”, Elsevier ● Publications, New Delhi, 2002. ● Tremblay J.P and Manohar R, “Discrete Mathematical Structures with Applications to Computer Science”, Tata McGraw–Hill Pub. Co. Ltd, New Delhi, 30th Reprint, 2011. 402 CU IDOL SELF LEARNING MATERIAL (SLM)