1. Evaluate the required determinant using the following techniques and show your step-by-step solution. 7V1 + 5V2 – 3V3 = 16 3V1 – 5V2 + 2V3 = -8 %3D 5V1 + 3V2 – 7V3 = 0 a. Determinant D using expansion by row with the 1st row as reference. b. Determinant D1 using expansion by column with the 2nd column as reference. c. Determinant D2 using alteration by zeros. d. Determinant D3 using pivotal element method with the element A31 as pivot.

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