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If y=sqrt(x s inx+sqrt(sinx+sqrt(sinx+ t...

If `y=sqrt(x s inx+sqrt(sinx+sqrt(sinx+ tooo))),p rov et h a t(dy)/(dx)=(cosx)/(2y-1)`

A

`(cos x)/(2y-1)`

B

`(-cos x)/(2y-1)`

C

`(sin x)/(1-2y)`

D

`(-sin x)/(1-2y)`

Text Solution

Verified by Experts

The correct Answer is:
A

Given, `y= sqrt(sinx+sqrt(sin x+sqrt sin x+....oo))`
`rArr = sqrt(sin x+y)`
`rArr y^(2) = sin x+y`
Onm differentiating w.r.t x we get
`2y(dy)/(dx)= "cos x+(dy)/(dx)`
`rArr (dy)/(dx)=(cosx)/(2y-1)`
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  14. The differential equation, obtained on eliminating A and B from the eq...

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  17. If 2 cos x ne 2 sin, x then the general solution of sin^(2)x-cos2x=2 s...

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  18. The equation of the plane passing through the points (1,2,3), (-1,4,2)...

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