6 q 9 / 2 + q 7 / 2 − 8 q 7 / 2 − 2 q 5 / 2 + 8 q 5 / 2 + 4 q 3 / 2 − 9 q 3 / 2 − 1 q 15 / 2 + 2 q 13 / 2 − 4 q 11 / 2 − 6 q + 7 q {\displaystyle {\frac {6}{q^{9/2}}}+q^{7/2}-{\frac {8}{q^{7/2}}}-2q^{5/2}+{\frac {8}{q^{5/2}}}+4q^{3/2}-{\frac {9}{q^{3/2}}}-{\frac {1}{q^{15/2}}}+{\frac {2}{q^{13/2}}}-{\frac {4}{q^{11/2}}}-6{\sqrt {q}}+{\frac {7}{\sqrt {q}}}}
