9. True or False (T/F): If True, Prove it; If False, give a counter-example. a) For all nonzero nxn matrices A, B, C, n > 1, | b) For all mxn matrices A, If AB = AC, then B = C. Nullity (A) = Nullity (A² ). Your answer: V Your argument V T/F goes here Your answer: LYour argument V T/F goes here

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A: (C)

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