v 6.7

m = \frac{Δ}{λ / 2} = \frac{D^{2}}{4 λ} (\frac{1}{| a_{1} |} + \frac{1}{| a_{2} |})

${m = \frac{\Delta}{\lambda/2} =\frac{D^2}{4 \lambda} \left( \frac{1}{|a_1|} + \frac{1}{|a_2|} \right)}$

Error