Topic: row reduction list of topics
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	A matrix problem		2005-04-04
		From Alan: Let A = 1 -1 0 2 -1 2 a b c where a, b, c are constant real numbers. For what values of a, b, c is A invertible? [Hint: Your answer should be an equation in a, b, c which satisfied if and only if A is invertible.] Answered by Judi McDonald.
	Augmented matrix		2002-12-31
		From Michelle: I am trying to augment a matrix so that i can find the values of the variables a, b, and c. For the life of me i can't find a solution to the matrix: 3 -5 2 ' 22 2 3 -1 ' -9 4 3 3 ' 1 I thank you for your help, Michelle Answered by Penny Nom.

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