Solving Systems with Cramer's Rule · Exercise 49

Use the determinant function on a graphing utility.

$\left|\begin{array}{cccc}\frac{1}{2}& 1& 7& 4\\ 0& \frac{1}{2}& 100& 5\\ 0& 0& 2& 2,000\\ 0& 0& 0& 2\end{array}\right|$

OpenStax, Algebra and Trigonometry 2e · §11.8 Solving Systems with Cramer's Rule · Exercise 49