− q 11 / 2 + 2 q 9 / 2 − 6 q 7 / 2 + 5 q 5 / 2 − 9 q 3 / 2 + 7 q − 8 q + 5 q 3 / 2 − 4 q 5 / 2 + 1 q 7 / 2 {\displaystyle -q^{11/2}+2q^{9/2}-6q^{7/2}+5q^{5/2}-9q^{3/2}+7{\sqrt {q}}-{\frac {8}{\sqrt {q}}}+{\frac {5}{q^{3/2}}}-{\frac {4}{q^{5/2}}}+{\frac {1}{q^{7/2}}}}