Question

calcule os determinantes: $\left[\begin{array}{ccc}2 \sqrt{6} &-2 \sqrt{5} &\\4 \sqrt{5} &5 \sqrt{6} \\\end{array}\right]$

Answer 1

$\displaystyle \mathsf{D = 2\sqrt{6}.5\sqrt{6} - 4\sqrt{5}.(-2\sqrt{5})}\\ \displaystyle \mathsf{D = 60 + 40}\\ \displaystyle \mathsf{D = 100}$

Resposta: 100