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Let vecu, vecv and vecw be such that |ve...

Let `vecu, vecv and vecw` be such that `|vecu|=1,|vecv|=2 and |vecw|=3` if the projection of `vecv " along "h vecu` is equal to that of `vecw` along `vecu` and vectors `vecv and vecw` are perpendicular to each other then `|vecu-vecv + vecw|` equals

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