申論題 - 阿摩線上測驗

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試卷：無年度 - 主題課程_線性映射：基底變換和座標變換#107933
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1. True or False (25%. 5 pts each) For each of the statements that follows, answer true if the statement is always true and false otherwise.

(e) If{u₁, u₂,... ,u_k} is an orthonormal set of vectors inRⁿand

U = {u₁, u₂,... ,u_k}
then UU^T = I_n (the n x n identity matrix).