Question

10. [{1+tan x. tan (x+a)} dx =
1) cot a log|cot(x+2)+C
2) cot a log cot(x + a) +6
COS X
3) cot a log
cos x
to
cos(x+al
sin x
4) cot a log
Itc
cot(x + a)​

Answer 1

Step-by-step explanation:

option for

is correct option 4is correct