Mark (√) against the correct answer in the following: If f = {(1, 2

1.	Mark (√) against the correct answer in the following: If f = {(1, 2), (3, 5), (4, 1)} and g = {(2, 3), (5, 1), (1, 3)} then (g o f) = ? A. {(3, 1), (1, 3), (3, 4)} B. {(1, 3), (3, 1), (4, 3)} C. {(3, 4), (4, 3), (1, 3)} D. {(2, 5), (5, 2), (1, 5)}
Answer» Correct Answer is (B) {(1, 3), (3, 1), (4, 3)} g = {(2, 3), (5, 1), (1, 3)} (g o f) = {(dom(f), 3), (dom(f), 1), (dom(f), 3)} ⇒(g o f) = {(1, 3), (3, 1), (4, 3)}

Mark (√) against the correct answer in the following: If f = {(1, 2), (3, 5), (4, 1)} and g = {(2, 3), (5, 1), (1, 3)} then (g o f) = ? A. {(3, 1), (1, 3), (3, 4)} B. {(1, 3), (3, 1), (4, 3)} C. {(3, 4), (4, 3), (1, 3)} D. {(2, 5), (5, 2), (1, 5)}

Answer»

Correct Answer is (B) {(1, 3), (3, 1), (4, 3)}

g = {(2, 3), (5, 1), (1, 3)}

(g o f) = {(dom(f), 3), (dom(f), 1), (dom(f), 3)}

⇒(g o f) = {(1, 3), (3, 1), (4, 3)}