/ 2 \ / 2 \ | 1 + tan (x)| \1 + tan (x)/*|2 + -----------|*tan(x) | 2 | \ 1 - tan (x)/ -------------------------------------- _____________ / 2 \/ 1 - tan (x)
/ 2 2 \ | / 2 \ / 2 \ 2 2 / 2 \| / 2 \ | 2 \1 + tan (x)/ 3*\1 + tan (x)/ *tan (x) 6*tan (x)*\1 + tan (x)/| \1 + tan (x)/*|2 + 6*tan (x) + -------------- + ------------------------ + -----------------------| | 2 2 2 | | 1 - tan (x) / 2 \ 1 - tan (x) | \ \1 - tan (x)/ / --------------------------------------------------------------------------------------------------- _____________ / 2 \/ 1 - tan (x)