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Exercise 2.5.1 Suppose T : R n ? R n is a linear transformation. Prove that...

Exercise 2.5.1 Suppose T : R n ? R n is a linear transformation. Prove that T is an isometry if and only if T(v) · T(w) = v · w. Recall that an isometry is a bijection that preserves distance.

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milcah answered 2 years ago
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