Question
Under what conditions does equality hold in the Schwarz inequality?
Step 1
First, recall the Schwarz inequality (also known as the Cauchy-Schwarz inequality): for any two vectors u and v in an inner product space, we have |<u, v>|^2 ≤ ||u||^2 ||v||^2 where <u, v> denotes the inner product of u and v, and ||u|| and ||v|| denote Show more…
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