Let A = {1, 2, 3}, B = {a, b, c, d}. The number of one-one functions from A to B is: A. 12 B. 24 C. 64 D. 81 Answer: B) 24 Explanation: Number of one-one functions from A (3 elements) to B (4 elements) = P(4, 3) = 4 × 3 × 2 = 24.

imo class 12 relations and functions

Let A = {1, 2, 3}, B = {a, b, c, d}. The number of one-one functions from A to B is:

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Let A = {1, 2, 3}, B = {a, b, c, d}. The number of one-one functions from A to B is:

Answer: B) 24

Explanation: Number of one-one functions from A (3 elements) to B (4 elements) = P(4, 3) = 4 × 3 × 2 = 24.