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Suppose A A is a 2x1 matrix and B is a 1x2 matrix. Prove that C=AB is not invertible.

 

Suppose A A is a 2x1 matrix and B is a 1x2 matrix. Prove that C=AB is not invertible.

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let A So AB viz 1B ed 2X1 PYING INGIZ ac ad frac be XI NOIZ Bate non Zero matrin Bare ze... blur-text-image

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