Evaluate the following integrals:

a) fxv1 + 4xdx b) J 1+2x dx 1+16x2 c) S ( 4t + 2 ) et +t dx ex d) S dx exte-x e) [ x22* dx f) Sx2e4x dx g) S 3+3 sin(t2) dt h) S x2 (Inx)2 dx