1 - x ------------------------------- __________ ______________ / 2 / 2 \/ 2*x - x *\/ 1 + x - 2*x
2 2 (-1 + x) (-1 + x) -1 + ------------ - --------- 2 x*(2 - x) 1 + x - 2*x ------------------------------- ______________ ___________ / 2 \/ x*(2 - x) *\/ 1 + x - 2*x
/ 2 2 2 \ | 3 3 3*(-1 + x) 3*(-1 + x) 2*(-1 + x) | (-1 + x)*|------------ - --------- - --------------- - ----------- + ------------------------| | 2 x*(2 - x) 2 2 2 / 2 \| |1 + x - 2*x / 2 \ x *(2 - x) x*(2 - x)*\1 + x - 2*x/| \ \1 + x - 2*x/ / ---------------------------------------------------------------------------------------------- ______________ ___________ / 2 \/ x*(2 - x) *\/ 1 + x - 2*x