Question

20. If f A: " B is a bijective function and if n(A) = 5 , then n(B) is equal to
(A) 10 (B) 4 (C) 5 (D) 25

Answer 1

Hi ,

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Bijective Function :

If the function 'f' is both one-one

and onto then it is called a bijective

function .

If f : A - > B is a bijective Function

then n( A ) = n( B )

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According to the problem given ,

f : A -> B is a bijective Function ,

n( A ) = 5 ,

Therefore ,

n( B ) = n( A ) = 5

Option ( C ) is correct.

I hope this helps you.

: )

Answer 2

Answer:

answer

c) correct answer 5