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Mechanical Engg. (GATE) 2006
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Multiple Choice
The solution of the differential equation
$\frac{dy}{dx}$+ 2xy = $e^{-x^2}$
- (1 + x) $e^{+x^2}$
- (1 + x) $e^{-x^2}$
- (1 - x) $e^{-x^2}$
- (1 - x) $e^{+x^2}$