Q. 1 - Precalculus Enhanced with Graphing Utilities

Question

$D=\left|\begin{array}{cc}a& b\\ c& d\end{array}\right|=\_\_\_\_\_\_\_\_$

Step-by-Step Solution

Answer

$D=\left|\begin{array}{cc}a& b\\ c& d\end{array}\right|=a\cdot d-c\cdot b$

Step 1. Given information

We have been given $D=\left|\begin{array}{cc}a& b\\ c& d\end{array}\right|=\_\_\_\_\_\_\_\_$.

We have to complete it.

Step 2. Complete the formula

$D=\left|\begin{array}{cc}a& b\\ c& d\end{array}\right|=a\cdot d-c\cdot b$