Question: CS - LINEAR ALGEBRA - 1. Let Q be an n x n matrix with columns q1, . .., In. Suppose Q equals Q-1. .

CS - LINEAR ALGEBRA -

1. Let Q be an n x n matrix with columns q1, . .., In. Suppose Q equals Q-1. . Show that each q; is unit length. . Show that the vectors q's are orthogonal to each other. . Find a 2 x 2 example Q with first entry q11 = cos 0. (for some fixed ()

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