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tigry1 [53]
3 years ago
12

Which expression gives the determinant of the matrix

Mathematics
2 answers:
svp [43]3 years ago
5 0
For 2 by 2 matrices, you can use the formula (ad-bc) to find the determinant of the matrix.
BartSMP [9]3 years ago
3 0

If the matrix is of 2 by 2 then we can find the determinant of the matrix.

\begin{bmatrix}a & b\\ c & d\end{bmatrix}

Then (ad - bc ) gives you the determinant of the matrix.

For example,

\begin{bmatrix} 2 & 4\\  1 & -2 \end{bmatrix}

= (2)(-2) - (1)(4)

= - 4 - 4

\begin{bmatrix} 2 & 4\\  1 & -2 \end{bmatrix} = -8



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