MatemáticasBásico1 respuestas

2x + 3y - 4z = - 9x + y + 6z012x - y + z = 4regla de kramer 3x3?

2x + 3y - 4z = - 9 x + y + 6z012 x - y + z = 4 regla de kramer 3x3.

En resumen

Expresarlo en matrices : <img src="https://tex.z-dn.net/?

Mejor respuesta

Diego25021
6

Expresarlo en matrices :

<img src="https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B%20%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-9%261%261%5C%5C12%261%26-1%5C%5C4%266%261%5Cend%7Barray%7D%5Cright%5D%20%7D%7B%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%263%26-4%5C%5C1%261%266%5C%5C1%26-1%261%5Cend%7Barray%7D%5Cright%5D%20%7D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%5C%5Cy%5C%5Cz%5Cend%7Barray%7D%5Cright%5D%20%3D%20%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-9%5C%5C12%5C%5C4%5Cend%7Barray%7D%5Cright%5D%20" />

Entonces :

<img src="https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%26-9%261%5C%5C1%2612%26-1%5C%5C1%264%261%5Cend%7Barray%7D%5Cright%5D%20%7B%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%263%26-4%5C%5C1%261%266%5C%5C1%26-1%261%5Cend%7Barray%7D%5Cright%5D%20%7D" />

<img src="https://tex.z-dn.net/?f=z%20%3D%5Cfrac%7B%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%263%26-9%5C%5C1%261%2612%5C%5C1%26-1%264%5Cend%7Barray%7D%5Cright%5D%20%7D%7B%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%263%26-4%5C%5C1%261%266%5C%5C1%26-1%261%5Cend%7Barray%7D%5Cright%5D%20%7D%0A" />.