TS ICET 23 May 2019 Shift 1 Paper

Question : 115 of 200

Marks: +1, -0

If A and B are two sets such that n(A) = 4 and n(B) = 5, then the number of non-constant functions from A into B is

Solution:

The number of functions defined from A to B is

5^4 = 625

∴ The number of constant functions defined from A to B is 5
∴ Required answer

= 5^4 – 5 = 625-5 = 620

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