a) Let 3-4 5 B-2 4-1 00 S be a nonsingular matrix. Then find the values of s using row operations. b) Give a value to s which makes B invertible given in part (a) and then find the inverse of Busing [B]/]. c) , If H is a 3x3 matrix and H has 3 leading ones. Is H invertible ? How did you understand? Explain in your own sentences.

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