Question

please see attachment below

Answer 1

please solve!

Answer 2

@Nnesha

Answer 3

@Hero See :-;

Answer 4

Hi @natg2900 Welcome to QC. Are you familiar with the definition of the determinant of a square matrix?

Answer 5

no @Hero

Answer 6

For a \(2 \times 2\) matrix, A,
The determinant of A is \(|A| = \begin{vmatrix}a & b \\c & d \end{vmatrix} = ad - bc\)

@natg2900 do you understand?