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If sec((x-y)/(x+y))=a,"then "(dy)/(dx) i...

If `sec((x-y)/(x+y))=a,"then "(dy)/(dx)` is a)`(y)/(x)` b)`-(y)/(x)` c)`(x)/(y)` d)`-(x)/(y)`

A

`(y)/(x)`

B

`-(y)/(x)`

C

`(x)/(y)`

D

`-(x)/(y)`

Text Solution

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The correct Answer is:
A
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