Preview question: Matriz inversa 2x2 por el método de Gauss-Jordan

Question 1

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Si A=

open parentheses table row 7 7 row 10 4 end table close parentheses

Utiliza el método de Gauss-Jordan para encontrar la matriz inversa de la matriz A realizando las operaciones sugeridas:

	$7$	$7$	$1$	$0$
	$10$	$4$	$0$	$1$
$large tilde operator for left parenthesis 4 right parenthesis space R subscript 1 minus space left parenthesis 7 right parenthesis space R subscript 2 rightwards arrow R subscript 1 of$	Answer	Answer	Answer	Answer
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$large tilde operator for fraction numerator R subscript 1 over denominator negative 42 end fraction rightwards arrow R subscript 1 of$	Answer	Answer	Answer	Answer
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$tilde operator for R subscript 2 minus left parenthesis 10 right parenthesis space R subscript 1 rightwards arrow R subscript 2 of$	Answer	Answer	Answer	Answer
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$fraction numerator R subscript 2 over denominator 4 end fraction rightwards arrow R subscript 2$	Answer	Answer	Answer	Answer
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Technical information

Behaviour being used: Adaptive mode

Minimum fraction: 0

Question summary: Si A= [[7,7],[10,4]] Utiliza el método de Gauss-Jordan para encontrar la matriz inversa de la matriz A realizando las operaciones sugeridas: 7 7 1 0 10 4 0 1 [Error converting from MathML to accessible text.] _____ _____ _____ _____ _____ _____ _____ _____ [Error converting from MathML to accessible text.] _____ _____ _____ _____ _____ _____ _____ _____ [Error converting from MathML to accessible text.] _____ _____ _____ _____ _____ _____ _____ _____ [Error converting from MathML to accessible text.] _____ _____ _____ _____ _____ _____ _____ _____

Right answer summary: part 1: -42; part 2: 0; part 3: 4; part 4: -7; part 5: 10; part 6: 4; part 7: 0; part 8: 1; part 9: 1; part 10: 0; part 11: -2/21; part 12: 1/6; part 13: 10; part 14: 4; part 15: 0; part 16: 1; part 17: 1; part 18: 0; part 19: -2/21; part 20: 1/6; part 21: 0; part 22: 4; part 23: 20/21; part 24: -2/3; part 25: 1; part 26: 0; part 27: -2/21; part 28: 1/6; part 29: 0; part 30: 1; part 31: 5/21; part 32: -1/6

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