Question: (a) Prove that (( x ((2 ( ( x ( v1 (2 + ( x ( v2 (2 + ( ( ( + ( x

(a) Prove that
(( x ((2 ( ( x ( v1 (2 + ( x ( v2 (2 + ( ( ( + ( x ( vk (2
(This inequality is called Bassel's Inequality.)
(b) Prove that Bessel's Inequality is an equality if and only if x is in span (S).

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a b Let W spanS span vi vk and let T bi bj be an orthonormal basis for W By Theorem 513 ... View full answer

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