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If f:R to R be defined by f(x)=3x^(2)-5 ...

If `f:R to R` be defined by `f(x)=3x^(2)-5` and `g: R to R ` by `g(x)= (x)/(x^(2)+1).` Then, gof is

A

`(3x^(2)-5)/(9x^(4)-30x^(2)+26)`

B

`(3x^(2)-5)/(9x^(4)-6x^(2)+26)`

C

`(3x^(2))/(x^(4)+2x^(2)-4)`

D

`(3x^(2))/(9x^(4)+30x^(2)-2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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