1. Let X be an inner product space. Using the parallelogram identity to prove by few lines the Appolonius identity: 113
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1. Let X be an inner product space. Using the parallelogram identity to prove by few lines the Appolonius identity: 113
1. Let X be an inner product space. Using the parallelogram identity to prove by few lines the Appolonius identity: 113 – +11z – yıl = }}x=y\[2+2 ||*- }(x + y|| 2. Prove that the norm function f(x) = |1x||: x + Ron a vector space X is continuous.
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