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int{1 + tan x.tan(x+alpha)}dx=...

`int{1 + tan x.tan(x+alpha)}dx= `

A

`cot alpha.log|(sinx)/(sin(x+alpha))|+c`

B

`tan alpha.log|(sinx)/(sin(x+alpha))|+c`

C

`cot alpha.log|(sin(x+alpha))/(sinx)|+c`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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