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5 Points Question 1 of 40 Give the order of the following matrix; if A = [aij], identify a32 and a23. 1 -5 e 0 7 -6 - -2 1/2 11 -1/5 A. 3 * 4; a32 =...
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Question 1 of 40 2.5 Points Give the order of the following matrix; if A = [a ij ], identify a 32 and a 23 . 1 0 -2 -5 7 1/2 -6 11 e -∏ -1/5 A. 3 * 4; a 32 = 1/45; a 23 = 6 B. 3 * 4; a 32 = 1/2; a 23 = -6 C. 3 * 2; a 32 = 1/3; a 23 = -5 D. 2 * 3; a 32 = 1/4; a 23 = 4 Queston 2 of 40 2.5 Points Use Cramer’s Rule to solve the following system. 4x - 5y = 17 2x + 3y = 3 A. {(3, -1)} B. {(2, -1)} C. {(3, -7)}
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D. {(2, 0)} Queston 3 of 40 2.5 Points If AB = -BA, then A and B are said to be anTcommutaTve. Are A = 0 1 -1 0 and B = 1 0 0 -1 anTcommutaTve? A. AB = -AB so they are not anTcommutaTve. B. AB = BA so they are anTcommutaTve. C. BA = -BA so they are not anTcommutaTve. D. AB = -BA so they are anTcommutaTve. Queston 4 of 40 2.5 Points Solve the following system of equaTons using matrices. Use Gaussian eliminaTon with back subsTtuTon or Gauss-Jordan eliminaTon. x - 2y + z = 0 y - 3z = -1 2y + 5z = -2 A. {(-1, -2, 0)} B. {(-2, -1, 0)}
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