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If f: Rvec is an invertible function suc...

If `f: Rvec` is an invertible function such that `f(x)a n df^(-1)(x)` are symmetric about the line `y=-x` , then `f(x)i sod d` `f(x)a n df^(-1)(x)` may not be symmetric about the line `y=x` `f(x)` may not be odd `non eoft h e s e`

A

f(x) is odd

B

f(x) and `f^(-1)(x)` may not be symmetric about the line y = x

C

f(x) may not be odd

D

none of these

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The correct Answer is:
A
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