12ve\dfrac{1}{\sqrt{2}} \mathrm{v}_{\mathrm{e}}21ve
12ve\dfrac{1}{2} \mathrm{v}_{\mathrm{e}}21ve
2ve\sqrt{2} \mathrm{v}_{\mathrm{e}}2ve
2ve2 \mathrm{v}_{\mathrm{e}}2ve