### Determinants and Cramer's Rule : Row Operations and Effect on Determinant, Computing Determinants and Solving Systems of Equations

1. State the elementary row operation being performed and its effect on the determinant Start with matrix a b c d a. c d a b b. a b kc kd c. a + kc b + kd c d 2. Compute the determinant a. 3 0 4 2 3 2 0 5 -1 b. 1 3 5 2 1 1 3 4 2 c. 3 5 -8 4 0 -2 3 -7 0 0 1 5 0 0 0 2 3. Use row reduction to convert t