Question: 7. (Strang 2.2.14} Consider the following linear system: 23: + 5y + z = 0 43: + (3; + z = 2 y z =

7. (Strang 2.2.14} Consider the following linear system: 23: + 5y + z = 0 43: + (3; + z = 2 y z = 3 (a) What value of of leads to a row exchange in the the second step of Gaussian elimi nation? (1)) What value of d leads to a missing third pivot in the upper triangular form {is what value of d makes the system singular)? (e) For case {b}, is there no solution, or an innite number of solutions

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