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d/dx [tan (tan^(-1) (x/a) - tan^(-1) ((x...

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

A

0

B

1

C

(1/2)

D

(-1)

Text Solution

Verified by Experts

The correct Answer is:
A
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