Preview question: Encontrando la matriz inversa 3x3 con la matriz adjunta 2

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Determina la matriz inversa de la matriz:

open parentheses table row cell negative 4 end cell cell negative 4 end cell cell negative 5 end cell row cell negative 1 end cell 4 cell negative 4 end cell row cell negative 5 end cell 5 1 end table close parentheses

Encuentra la matriz inversa utilizando la fórmula de la matriz inversa vista en clase:

A d j u n t a space open parentheses table row cell negative 4 end cell cell negative 4 end cell cell negative 5 end cell row cell negative 1 end cell 4 cell negative 4 end cell row cell negative 5 end cell 5 1 end table close parentheses

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open parentheses A d j u n t a space open parentheses table row cell negative 4 end cell cell negative 4 end cell cell negative 5 end cell row cell negative 1 end cell 4 cell negative 4 end cell row cell negative 5 end cell 5 1 end table close parentheses close parentheses to the power of t

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|A|=

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A^-1=

Error converting from MathML to accessible text.

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Behaviour being used: Adaptive mode

Minimum fraction: 0

Question summary: Determina la matriz inversa de la matriz: A=[[-4,-4,-5],[-1,4,-4],[-5,5,1]] Encuentra la matriz inversa utilizando la fórmula de la matriz inversa vista en clase: [Error converting from MathML to accessible text.]= _____ _____ _____ _____ _____ _____ _____ _____ _____ [Error converting from MathML to accessible text.]= _____ _____ _____ _____ _____ _____ _____ _____ _____ |A|= _____ A-1=[Error converting from MathML to accessible text.] _____ _____ _____ _____ _____ _____ _____ _____ _____

Right answer summary: part 1: 24; part 2: 21; part 3: 15; part 4: -21; part 5: -29; part 6: 40; part 7: 36; part 8: -11; part 9: -20; part 10: 24; part 11: -21; part 12: 36; part 13: 21; part 14: -29; part 15: -11; part 16: 15; part 17: 40; part 18: -20; part 19: -255; part 20: -8/85; part 21: 7/85; part 22: -12/85; part 23: -7/85; part 24: 29/255; part 25: 11/255; part 26: -1/17; part 27: -8/51; part 28: 4/51

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