Answer:
- 3
Explanation:
Given the 2 x 2 matrix
Then the determinant = ad - bc
Hence for
determinant = (1 × - 3) - (7 × 0) = - 3 - 0 = - 3
-3
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![\left[\begin{array}{ccc}ab\\cd\\\end{array}\right]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/mursltexigtaw2ap8vrxztr6x9mmdgj7s1.png)
![\left[\begin{array}{ccc}1&7\\0&-3\\\end{array}\right]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/pho36yjon1k8yx9p9fz59vgk2smgyurr1k.png)