1.
x\sin(x)+\cos(x)+C
2.
-x\cos(x)+\sin(x)+C
3.
2(-x\cos(x)+\sin(x))+C
4.
2(x\sin(x)+\cos(x))+C
5.
4(-x\cos(x)+\sin(x))+C
6.
3(x\sin(x)+\cos(x))+C
7.
-\cos(x)(2x+1)+2\sin(x)+C
8.
-\cos(x)(x+1)+\sin(x)+C
9.
\sin(x)(x+1)+\cos(x)+C
10.
15(x\sin(x)+\cos(x))+C
