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Posted: **Tue Sep 07, 2021 7:15 am**

: 1 Let X Be An Inner Product Space Using The Parallelogram Identity To Prove By Few Lines The Appolonius Identity 113 1 (11.64 KiB) Viewed 111 times

1. Let X be an inner product space. Using the parallelogram identity to prove by few lines the Appolonius identity: 113 – x112+lz – y|f* = {lx-»11° +2||--(x+v9|| 2. Prove that the norm function f(x) = ||*||- * - R on a vector space X is continuous.