Practice problem
What is the determinant of [−4−7−7−3−3−90−91]\begin{bmatrix}-4&-7&-7\\-3&-3&-9\\0&-9&1\end{bmatrix}−4−30−7−3−9−7−91?
-480480480
126126126
132132132
000
Type a concept, like “slope” or “photosynthesis”.
