Let A be a 3 3 matrix and suppose that 2a1 + a2 - 4a3 =
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2a1 + a2 - 4a3 = 0
How many solutions will the system Ax = 0 have? Explain. Is A nonsingular? Explain.
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If we set x 2 1 4 T then Ax 2a 1 1a 2 4a 3 0 Thus x is a nonzero solutio...View the full answer
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