Find the intervals in which the function `f` given by `f(x)=(4sinx-2x-xcosx)/(2+cosx)i s` increasing decreasing, `x in (0,2pi)`

Explanation

`text(We have )f(x) = frac{4sinx-2x-xcosx}{2+cosx}text( Consider the interval)[0,2pi]`



`f(x)=frac{4sinx-x(2+cosx)}{2+cosx}`



`f(x)=frac{4sinx}{2+cosx}-x`


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