Mid5 - Question 8 Use Gauss-Jordan elimination(row...

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Question 8 Use Gauss-Jordan elimination (row operations) to determine the number of solutions of the following system. For which k is there a unique solution? in±nitely many? none? x + y + z =1 x +2 y + kz =2 x +4 y + k 2 z =3 Question 9. Find a matrix A so that A · 0 0 1
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