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y = log [sqrt(x+sqrt(x^(2)+a^(2)))], the...

`y = log [sqrt(x+sqrt(x^(2)+a^(2)))]`, then dy/dx =

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
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