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If a curve `y=f(x)` passes through the point `(1,-1)` and satisfies the differential equation `,y(1+x y)dx""=x""dy` , then `f(-1/2)` is equal to: (1) `-2/5` (2) `-4/5` (3) `2/5` (4) `4/5`

A

`-(2)/(5)`

B

`-(4)/(5)`

C

`(2)/(5)`

D

`(4)/(5)`

Text Solution

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The correct Answer is:
D
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