Determine whether the matrix is in row echelon form, reduced row echelon form, both, or neither. 1 203 01 0 0 11 0 0 0001 Lo 000 0 O neither O reduced row echelon form O NONE OF THE CHOICES O both O row echelon form

Q: 5 and 6 please

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Q: 8 and 9

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Q: 7 and 8

A: We have given problems.

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Q: 5. Find all values of k for which A is invertible. [k A=0 Lk -k 3 k+1 1 -8 k-1.

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Q: 8 and 9

A: 8.

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