The integrating factor of the differenti...

The integrating factor of the differential equation `(1+x^2)(dy)/(dx)+y=e^("tan"^(-1)x)` is

A

(a) `tan^(-1)x `

B

(b) `1+x^2`

C

(c) `e^("tan"^(-1)x)`

D

(d) `log(1+x^2)`

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The correct Answer is:

C

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