$$EFFectueA=\frac{\frac{1}{2}\frac{-1}{2+\frac{3}{3}+3}}{\frac{12}{37}+\frac{1}{2}}\div\frac{\frac{1}{3-\frac{1}{2}}-\frac{4}{7}}{\frac{4}{7}+\frac{3}{10}}$$
$A=\frac{37}{72Ectu\left(eF\right)^{2}}$
$u\neq 0\text{ and }c\neq 0\text{ and }t\neq 0\text{ and }F\neq 0\text{ and }E\neq 0$
$E=\frac{37}{72Actu\left(eF\right)^{2}}$
$A\neq 0\text{ and }u\neq 0\text{ and }c\neq 0\text{ and }t\neq 0\text{ and }F\neq 0$