Question: x ( y = (x ( v1) (y ( v1) + ( x ( v2) (y ( v2) + ( ( ( + (x (

x ( y = (x ( v1) (y ( v1) + ( x ( v2) (y ( v2) + ( ( (
+ (x ( vn) ( y ( vn)
(This identity is called Parseval's Identity.)
(b) What does Parseval's Identity imply about the relationship between the dot products x ( y and [x]B ( [y]B?

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