Find constraint equations (if any) that b must satisfy in order for Ax = b to be consistent. 1 2 3 -1 *d. A =| 2 -1 2 a. A = 6 -2 1 -2 1 3 1 1 1 1 1 e. A = -1 "b. A = 1 3 4 3 -1 1 1 1 1 c. A =|1 2 1 1 -1 1 f. A = 2 1 -1 1 1 -1

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