int (sec x)^(m) (tan^(3)x + tan x) dx is...

`int (sec x)^(m) (tan^(3)x + tan x) dx` is equal to

A

`sec^(m+2) x + C`

B

`tan^(m+2)x + C`

C

`(sec^(m+2)x)/(m + 2)+C`

D

`(tan^(m+2)x)/(m+2) + C`

Verified by Experts

The correct Answer is:

C

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