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Let f:Rrarr R be a function defined by,...

Let `f:Rrarr R ` be a function defined by,` f(x)`=`(e^|x|-e^-x)/(e^x+e^-x` then

A

f is both one - one and onto

B

f is one - one but not onto

C

f is onto but not one - one

D

f is neither one - one nor onto

Text Solution

Verified by Experts

The correct Answer is:
D
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