If f(x)=x/(sqrt((1+x^2))) then (fofof) (...

If `f(x)=x/(sqrt((1+x^2)))` then (fofof) (x) =

A

a)`(3x)/(sqrt((1+x^2)))`

B

b) `(x)/(sqrt((1+3x^2)))`

C

c) `(3x)/(sqrt((1-x^2)))`

D

d) None of these

Verified by Experts

The correct Answer is:

B

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