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What is the solution of the differential...

What is the solution of the differential equation (x + y) (dx - dy) = dx + dy ?

A

2 log (x + y) = c (y - x)

B

(y - x) + log (x + y) = c

C

`((y)/(x)) + [log ((y)/( c) )] = c`

D

None of these

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The correct Answer is:
B
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