indefinite intergrals

Find the fonowing hitegrals : cosec2x+2' + 2) dx 3.1 1.1 ertanex 1.2 f er + \ ) dx 1.4 J dx IS f dx 1.7 J 1+ sin x12dx cos2x1 2sin2x 1.10 2-1 2.3 2.4 4-3 J (x2 + + 2)dx J dx J sin x cosec (cos X)C0t (cos X)dx 3.2 3.4 3.5 3.6 3.9 3.11 3.12 3.13 4.2 4+4 x' cotx5 sec2x + 7" 3) dx J xz e'" P cosx3 dx f dx dx J(Sx - 7)2dx J sin 8x ds e'r2dX