Question 14. Let -0-0-0) U2 = = 1 3√2 1 3√/2 4 1 √2 √2 3√2, (b) Let x = (1, 1, 1)T. Write x as a linear combination of u₁, U₂, and u3 using Theorem 21.13 and use Parseval's formula to compute ||x||.

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