1.
\frac{1}{2}(-\frac{1}{2}x\cos(2x)+\frac{1}{4}\sin(2x))+C
2.
\frac{1}{2}(-\frac{1}{5}x\cos(5x)+x\cos(x)+\frac{1}{25}\sin(5x)-\sin(x))+C
3.
x\tan^{2}(x)+x-\tan(x)+C
4.
x\tan(x)+\ln\left|\cos(x)\right|+C
5.
\frac{1}{2}\sin(2x)\tan(2x)+\frac{1}{2}\cos(2x)+C
6.
\frac{1}{12}(\sin(6x)-3\sin(2x)\cos(4x))+C
7.
\frac{1}{2}x\tan^{2}(x)-\frac{1}{2}(-x+\tan(x))+C
8.
x\tan(x)+\ln\left|\cos(x)\right|+C
9.
\frac{1}{2}x(-\frac{1}{5}\cos(5x)-\cos(x))-\frac{1}{2}(-\frac{1}{25}\sin(5x)-\sin(x))+C
10.
\frac{1}{2}(-\frac{1}{2}x^{2}\cos(2x)+\frac{1}{4}(2x\sin(2x)+\cos(2x)))+C
