(usin2α)/g(u \sin 2 \alpha) / g(usin2α)/g
(u2sin2α)/g\left(\mathrm{u}^{2} \sin 2 \alpha\right) / \mathrm{g}(u2sin2α)/g
(usin2α)/2g(u \sin 2 \alpha) / 2 g(usin2α)/2g
(u2sin2α)/2g\left(u^{2} \sin 2 \alpha \right) / 2 g(u2sin2α)/2g