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Evaluate int(secx)/((secx+tanx)) dx....

Evaluate `int(secx)/((secx+tanx)) dx`.

A

`tan x + sec x + C`

B

`tanx - sec x + C`

C

`-tan x + sec x + C`

D

`-tanx - sec x + C`

Text Solution

Verified by Experts

The correct Answer is:
B
`I = int {(secx)/((secx + tan x)) xx((secx - tanx))/((sec x - tanx))} dx`.
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