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let x and y be vectors such that \(\operatorname{proj}_{\mathbf{x}}(\mathbf{y})=\dbinom{5}{3}\)and \(\operatorname{proj}_{\mathbf{y}}(\mathbf{x})=\dbinom{2}{-2}\) compute the ratio \(\dfrac{\|\mathbf{x}\|}{\|\mathbf{y}\|}\)

 Feb 13, 2022
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|x|/|y| = 4/9.

 Feb 14, 2022

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