If d/(dx) {f(x)}=1/(1+x^2) then d/(dx){...

If `d/(dx) {f(x)}=1/(1+x^2)` then `d/(dx){f(x^3)}` is a)`(3x)/(1+x^3)` b)`(3x^2)/(1+x^6)` c)`(-6x^5)/(1+x^6)^2` d)`(-6x^5)/(1+x^6)`

A

`(3x)/(1+x^3)`

B

`(3x^2)/(1+x^6)`

C

`(-6x^5)/(1+x^6)^2`

D

`(-6x^5)/(1+x^6)`

Verified by Experts

The correct Answer is:

B

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