− 2 q 7 / 2 − q 5 / 2 + 1 q 5 / 2 + 2 q 3 / 2 − 2 q 3 / 2 − 2 q + 2 q {\displaystyle -{\frac {2}{q^{7/2}}}-q^{5/2}+{\frac {1}{q^{5/2}}}+2q^{3/2}-{\frac {2}{q^{3/2}}}-2{\sqrt {q}}+{\frac {2}{\sqrt {q}}}}
