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Solution of the differential equation dydx=x+xy−(1+y)\frac{dy}{dx} = x + xy - (1 + y) is:

Solution

✅ Correct Option: 1

Factor RHS: x+xy−1−y=x(1+y)−(1+y)=(x−1)(1+y)x + xy - 1 - y = x(1+y) - (1+y) = (x-1)(1+y).

Separate variables: dy1+y=(x−1)dx\frac{dy}{1+y} = (x-1)dx.

Integrate: log⁡∣1+y∣=x22−x+C1\log|1+y| = \frac{x^2}{2} - x + C_1.

So ∣y+1∣=Cex22−x|y+1| = Ce^{\frac{x^2}{2} - x}.

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