Let A₁ be an 4 x 4matrix with det (40) = 4. Compute the determinant of the matrices A₁, A2, A3, A4 and A5, obtained from An by the following operations: A₁ is obtained from Ao by multiplying the fourth row of Ap by the number 3. det (A₁) = [2mark] A₂ is obtained from Ao by replacing the second row by the sum of itself plus the 2 times the third row. det (A2) = [2mark] A3 is obtained from Ao by multiplying Ao by itself.. det (A3) = [2mark] A₁ is obtained from Ao by swapping the first and last rows of Ag. det (A4) = [2mark] A5 is obtained from Ao by scaling Ao by the number 4. det (A5) = [2mark]