Question: Let R3 have the Euclidean inner product. Let u = (l, 1, -1) and y = (6, 7, -15). If ||ku + v|| = 13,

Let R3 have the Euclidean inner product. Let u = (l, 1, -1) and y = (6, 7, -15). If ||ku + v|| = 13, what is K?

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