2 1 1 x ----------- + ----------- + ----------- ________ ________ 3/2 / 2 / 2 / 2\ \/ 1 - x \/ 1 - x \1 - x /
/ 2 \ | 1 3 3*x | x*|- ------- + ------ + ---------| | 2 2 2| | -1 + x 1 - x / 2\ | \ \1 - x / / ---------------------------------- ________ / 2 \/ 1 - x
4 2 15*x 21*x 4 + --------- + ------ 2 2 / 2\ 1 - x \1 - x / ---------------------- 3/2 / 2\ \1 - x /