Let A be a 4 × 4 matrix with row vectors a,b, c, and d. Assume that det(A) = 7. 1.Find the determinant of matrix B with rows 3b, a, c− 2b,d. 2.Pick any non-zero matrix A that satisfies the condition above, find the corresponding B and the Minkowski product its first two row vectors. 3.Find the Euclidean norm of the first row vector of B. 4.Illustrate the Cauchy-Schwarz inequality for the first two row vectors of B.

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