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Let f : (-1, 1) -> R be such that f(cos4...

Let `f : (-1, 1) -> R` be such that `f(cos4theta) = 2/(2-sec^2theta` for `theta in (0, pi/4) uu (pi/4, pi/2)`. Then the value(s) of `f(1/3)` is/are

A

one-one and onto

B

onto but not one-one

C

one -one but not onto

D

neither one-one nor onto

Text Solution

Verified by Experts

The correct Answer is:
A, B
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