Integrating factor of dy dx + y x = x^3 - 3 is - Vidyadip

MCQ

Integrating factor of $\frac{{dy}}{{dx}} + \frac{y}{x} = {x^3} - 3$ is

✓
$x$
B
$\log x$
C
$ - x$
D
${e^x}$

✓

Answer

Correct option: A.

$x$

a
(a) $I.F.$ $ = {e^{\int_{}^{} {p.dx} }}$ ==> ${e^{\int_{}^{} {\frac{1}{x}dx} }} = {e^{{{\log }_e}x}} = x$.

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