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