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If (dx)/dy = (xy)/(x^2 + y^2), y(1) = 1...

If `(dx)/dy = (xy)/(x^2 + y^2), y(1) = 1` and `y(x) = e` then `x =`

A

`sqrt(3e)`

B

`sqrt(2e)`

C

`(e)/(sqrt(2))`

D

`1/2sqrt(3)e`

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The correct Answer is:
A
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