Calculus

JEE Main level, single correct, medium

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Question 2 of 4

The integrating factor of the differential equation dydx+2xy=x2\frac{dy}{dx} + \frac{2}{x} y = x^2 (x>0x > 0) is:

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Answer: (B) x2x^2

IF=e∫2xdx=e2ln⁡x=eln⁡x2=x2\text{IF} = e^{\int \frac{2}{x} dx} = e^{2\ln x} = e^{\ln x^2} = x^2.

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