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The general solution of differential ...

The general solution of differential equation ` (dx) /( dy) = cos (x+y)` is

A

`tan ""((x+y)/(2))= y+c`

B

`tan ""((x+y)/(2))=x+c`

C

`cot ""((x+y)/(2))=y+c`

D

` cot ((x+y)/(2))=x+C`

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The correct Answer is:
A
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