Let A = [7 -2 10 4 5 - -9 -2 , Then AB = and BA = 미 The determinant of AB is The determinant of BA is 4 2 and B = -7 -7 6 −1

Evaluate the determinant |213034343| by expanding by minors.

Evaluate the determinant |324012231| , by expanding by minors along the first row.

Fill in the blanks with appropriate numbers to calculate the determinant. Where there is , choose the appropriate sign (+ or -).