Let {V1,..., Vk} be an orthogonal set in R". Which of the following are true? Select one or more: O The rank of the n x k matrix with column vectors {v1,..., Vk} is k O d(v;, vj) = 1 for every i + j O If {V1,..., Vk} is orthonormal, then || Vi||? : O The rank of the n x k matrix with column vectors {v1,..., V} is n

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