SIMPLE TECHNIQUES OF INTEGRATION
1. S(cos x - x) dx COS xpxur Jz 3 3. ; (+ 7 ) dz $ 22 4.JÕ(2 sec°(w) - 5.$}(7e9 + ) dy 7 4. Si (2 sec (w) - 8 csc(w) cot(w))dw