/ 2 \ | 1 + tan (x) x*tan(x) / 2 \ | 2*|- ----------- + --------- + \1 + tan (x)/*acot(x)*tan(x)| | 2 2 | | 1 + x / 2\ | \ \1 + x / /
/ / 2 \ \ | | 4*x | | | |-1 + ------|*tan(x) | | | 2| / 2 \ / 2 \| |/ 2 \ / 2 \ \ 1 + x / 3*\1 + tan (x)/*tan(x) 3*x*\1 + tan (x)/| 2*|\1 + tan (x)/*\1 + 3*tan (x)/*acot(x) - -------------------- - ---------------------- + -----------------| | 2 2 2 | | / 2\ 1 + x / 2\ | \ \1 + x / \1 + x / /