Question

Dada as matrizes A = (10 5) (2 4) e B = [ -2] Sendo x = det A - detB entao x e igual a : letra a 60 letra b 62 letra c 32


Se poderem fazer o cálculo para mim por favor

Answer 1

Resposta:

Explicação passo-a-passo:

$A=\left[\begin{array}{cc}10&5\\2&4\end{array}\right]\\\\detA=10.4-2.5\\\\detA=40-10\\\\detA=30\\\\\\B=\left[\begin{array}{c}-2\end{array}\right]\\\\detB=-2\\\\\\x=detA-detB\\\\x=30-(-2)\\\\x=30+2\\\\x=32$