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let y=sqrt(x+sqrt(x+sqrtx...oo))) then d...

let `y=sqrt(x+sqrt(x+sqrtx...oo)))` then `dy//dx` equals

A

`1/(2y-1)`

B

`1/(y^(2)-1)`

C

`(2y)/(y^(2)-1)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
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