Virtual photon asymmetries

$\displaystyle A_1(x,Q^2)$	$\textstyle =$	$\displaystyle \frac{g_1(x,Q^2)-\gamma^2 g_2(x,Q^2)}{F_1(x,Q^2)}$	(9)
$\displaystyle A_2(x,Q^2)$	$\textstyle =$	$\displaystyle \frac{\gamma\big[g_1(x,Q^2)+g_2(x,Q^2)\big]}{F_1(x,Q^2)}$	(10)