Let {V₁,..., Vk} be an orthogonal set in R". Which of the following are true? Select one or more: ✔ The rank of the n × k matrix with column vectors {V₁, . . . , Vk} is k □ d(vi, Vj) = 1 for every i ‡ j The rank of the n x k matrix with column vectors {V₁,..., Vk} is n If {V₁,..., Vk} is orthonormal, then || Σ_₁ v₂||² = k 0 || Σh_₁ vi||² = Σh_₁ ||vi||²|

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A: Given:  NT=21T2-80T+24 , 4<T<34 Tt=6t+1.8T

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