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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 \(\dfrac{\|\mathbf{x}\|}{\|\mathbf{y}\|}\).

An explanation please if possible?

 Feb 12, 2022
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x/y = 2/7.

 Feb 13, 2022

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