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Question

The solution of the differential equation dydx=1+x+y+xy is
[AISSE 1985; AI CBSE 1990; MP PET 2003]


A


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B


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C


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D

None of these

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Solution

The correct option is A



dydx=1+x+y+xydydx=(1+x)(1+y)dy1+y=(1+x)dx
On integrating, we get log (1+y)=x22+x+c.


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