7. (12 points) Let T:Rn→ Rn be a linear operator. Show that if T preserves theEuclidean distance bet
問題詳情
7. (12 points) Let T:Rn→ Rn be a linear operator. Show that if T preserves theEuclidean distance between any two poiuts, that is, ||T(u) - T(ข)|| = ||u - u||forany u,
, then the matrix representation of T relative to the standard basis isan orthogonal matrix.