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An integrating factor of the differentia...

An integrating factor of the differential equation `cos^(2) x (dy)/(dx) - (tan 2x) y = cos^(4) x` is

A

`(cos x)/(1 + cos^(2) x)`

B

`(cos 2x)/(1 + cos^(2) x)`

C

`(2 cos^(2) x)/(cos 2x)`

D

`(cos 2x)/(2cos^(2) x)`

Text Solution

Verified by Experts

The correct Answer is:
D
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