Answer Happy

Posted: **Tue Sep 07, 2021 7:12 am**

: 1 Let X Be An Inner Product Space Using The Parallelogram Identity To Prove By Few Lines The Appolonius Identity Z 1 (30.75 KiB) Viewed 81 times

1. Let X be an inner product space. Using the parallelogram identity to prove by few lines the Appolonius' identity: ||z – x||2+1]z – yll2 = {|lx – yll+2 x? ||=– (x+y)| 2. Prove that the norm function f(x) = ||*||:X + Ron a vector space X is continuous.