Question: Let (v1, v2, v3) be an orthonormal basis for an inner product space V. Show that if is a vector in V, then ||w||2 =

Let (v1, v2, v3) be an orthonormal basis for an inner product space V. Show that if is a vector in V, then
||w||2 = (w, v1)2 + (w, v2)2 + (w, v3)2.

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