Solving Systems with Cramer's Rule · Try It 2

Find the determinant of the 3 × 3 matrix.

$$det\left(A\right)=\left|\begin{array}{ccc}1& -3& 7\\ 1& 1& 1\\ 1& -2& 3\end{array}\right|$$

OpenStax, Algebra and Trigonometry 2e · §11.8 Solving Systems with Cramer's Rule · Try It 2