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f(x)=x/(e^x-1)+x/2+2cos^3 x/2 on R-{0} i...

`f(x)=x/(e^x-1)+x/2+2cos^3 x/2` on R-{0} is

A

one one function

B

bijection

C

algebraic function

D

even function

Text Solution

Verified by Experts

The correct Answer is:
D
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