Question

Resuelve utilizando la regla de cramer.

Answer 1

Resolver por Cramer

$\displaystyle\ det \(\left[\begin{array}{cc}2&3\\5&2&\end{array}\right] = 2 \cdot 2 - 3 \cdot 5 = -11$

$\displaystyle\ x = \frac{-1}{11} det \(\left[\begin{array}{cc}-5&3\\4&2&\end{array}\right] = \frac{-1}{11} (-5 \cdot 2 - 3 \cdot 4 )= \frac{22}{11} = 2$

$\displaystyle\ y = \frac{-1}{11} det \(\left[\begin{array}{cc}2&-5\\5&4&\end{array}\right] = \frac{-1}{11} (2 \cdot 4 + 5 \cdot 5) = \frac{-33}{11} = -3$

Otro ejemplo en https://brainly.lat/tarea/12537781