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(d)/(dx) [tan^(-1) ((a-x)/(1+ ax))] is...

`(d)/(dx) [tan^(-1) ((a-x)/(1+ ax))]` is

A

`1/(1+a^2) - 1/(1+x^2)`

B

`(-1)/(sqrt(1-((a-x)/(1+ax)^2)))`

C

`1/(sqrt(1-((a-x)/(1+ax)^2)))`

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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