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Posted: **Tue Sep 07, 2021 7:14 am**

: 1 Let X Be An Inner Product Space Using The Parallelogram Identity To Prove By Few Lines The Appolonius Identity 11z 1 (14.74 KiB) Viewed 94 times

1. Let X be an inner product space. Using the parallelogram identity to prove by few lines the Appolonius" identity: 11z – x11*+1z – ylp? = lx = yi[ +2 ||-- }(x + y) || 2. Prove that the norm function f(x) = ||*|| X + Ron a vector space X is continuous.