7. Let T1, T2, T3 represent the following row operations: T₁: Interchange rows 1 and 3. T2: Multiply row 2 by four. T3: Subtract two of row 2 from row 3. Give the 3 x 3 matrices corresponding to the following operations: (a) T₁ (d) T₂0 T₁ (b) T₂ (e) T₂0 T3 (c) T3 (f) Т30Т1

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