Question

Pendiente de una recta ​

Answer 1

Respuesta:

A = 82

Explicación paso a paso:

$A= \frac{1}{2}\left[\begin{array}{ccc}2&3\\6&12\\12&12\\12&1\\2&3\end{array}\right] =$

A = $\frac{1}{2}[(2x12+6x12+12x1+12x3)-(3x6+12x12+12x12+1x2)]=$

A = $\frac{1}{2}[(24+72+12+36)-(18+144+144+2)]=$

A = $\frac{1}{2} [144-308]=$

A = $\frac{1}{2}(-164) =$

A = -82

A = 82 valor absoluto.