Set Theory and Algebra MCQ

1:

If f : R ---->R defined by f(x) = x2 + 1, then values of f -1 (17) and  f -1(-3) are respectively

A.

{Ø}, (4, - 4)

B.

{3,-3},{Ø}

C.

{Ø},{3,-3}

D.

{4,-4},Ø

 

Answer : D

Explanation :

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Option: A

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