Question
Find the determinant of the matrix.$$\left[\begin{array}{llll}a & u & v & w \\0 & b & x & y \\0 & 0 & c & z \\0 & 0 & 0 & d\end{array}\right]$$
Step 1
The determinant of a lower triangular matrix is the product of the elements on its main diagonal. So, we can write the determinant as follows: $$\text{det} = a \cdot b \cdot c \cdot d$$ Show more…
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