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If y=tan^(-1) sqrt(x^(2)+y^(2))+cot^(-1)...

If `y=tan^(-1) sqrt(x^(2)+y^(2))+cot^(-1) sqrt(x^(2)+y^(2)),"then " dy/dx=`

A

` (pi)/(2) `

B

` (2)/(pi) `

C

` 0`

D

`1`

Text Solution

Verified by Experts

The correct Answer is:
C
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