Answer:
- 3
Step-by-step explanation:
Given the 2 x 2 matrix [tex]\left[\begin{array}{ccc}ab\\cd\\\end{array}\right][/tex]
Then the determinant = ad - bc
Hence for [tex]\left[\begin{array}{ccc}1&7\\0&-3\\\end{array}\right][/tex]
determinant = (1 × - 3) - (7 × 0) = - 3 - 0 = - 3
