= Given two sets of m vectors, x R and y; R for all...

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= Given two sets of m vectors, x¡ € R" and y; € R" for all i = 1,2,...,m, verify that the summations [1x₁x] and [₁ x¡y can be vectorized as the following matrix multiplications: where X = [X1 X2 Your answers: Xm] m Ex₁x = XX i=1 m and Ex¡y! = XY¹, [xy! i=1 € Rnxm and Y = [y₁ y2 ... Ym] € R¹×m nxm = Given two sets of m vectors, x¡ € R" and y; € R" for all i = 1,2,...,m, verify that the summations [1x₁x] and [₁ x¡y can be vectorized as the following matrix multiplications: where X = [X1 X2 Your answers: Xm] m Ex₁x = XX i=1 m and Ex¡y! = XY¹, [xy! i=1 € Rnxm and Y = [y₁ y2 ... Ym] € R¹×m nxm