👉 In mathematics, a determinant is an important concept used to describe the number of ways that two or more vectors can be multiplied together. It represents the number of different linear combinations of those vectors that add up to zero.
The general form for a determinant in 2x2 matrices is:
```
|a11
a22 - a12
a21|
|a12
a21 - a11
a22|
```
Where `a11` and `