What is ∫ (elog x + sin x) cos x dx equal to?
1
\(\rm \sin x + x \cos x + \dfrac{\sin^2 x}{2}+c\)
2
\(\rm \sin x - x \cos x + \dfrac{\sin^2 x}{2}+c\)
3
\(\rm x \sin x + \cos x + \dfrac{\sin^2 x}{2}+c\)
4
\(\rm x \sin x - x \cos x + \dfrac{\sin^2 x}{2}+c\)