Assertion: determinant's value | /r/HasProperty | *\left\begin{array}{cca_1
Facets:
Source sentences:
text: In fact, the absolute value of the determinant of a $2 \times 2$ matrix \begin{align*} \left[ \begin{array}{cc} a_1 & a_2\\ b_1 & b_2 \end{array} \right]