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If 3 f(x) - f((1)/(x) ) = log x^(4) , th...

If `3 f(x) - f((1)/(x) ) = log x^(4)` , then `f(e^(-x))` is

A

1 + x

B

1/x

C

x

D

`-x`

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The correct Answer is:
D
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DISHA PUBLICATION-RELATIONS AND FUNCTIONS -EXERCISE - 1
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  15. If f(x)=xandg(x)=|x|, then what is (f+g)(x) equal to ?

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