Question

urgent integration of of (cosx-cos2x)/(1-cosx)

Answer 1

@Jaynator495 @radar @Michele_Laino

Answer 2

@mathmale @Jaynator495 @radar @hartnn @Michele_Laino

Answer 3

@zepdrix

Answer 4

hint:
we can simplify the function, like below:
\[\Large \frac{{\left( {2\cos x + 1} \right)\left( {\cos x - 1} \right)}}{{\left( {\cos x - 1} \right)}} = 2\cos x + 1\]

Answer 5

ok thanx

Answer 6

so it is suffice to solve this:
\[\huge \int {\left( {2\cos x + 1} \right)} \;dx\]