Question

please help me with this integral evaluation.

Answer 1

\[\int\limits_{?}^{?}\frac{ 1 }{ sinxcos^3x }\]

Answer 2

put t= cos x

Answer 3

after doing this :

1/ (s c^3) = s/ (s^2 c^3) = s/ ((1-c^2)c^3)

s= sin c= cos

Answer 4

let me try..

Answer 5

then partial fractions

Answer 6

ok

Answer 7

logItanxI+ tan^2x/2 + C

Answer 8

@hartnn i got the answer..

Answer 9

cool :)