Question

How do you find the determinant of `((1, 2), (1, 3))`?

Answer 1

`|(1,2),(1,3)| = 1`

Explanation:

If we have a matrix `A = ((a,b),(c,d))`, then the determinant of `A` denoted `det(A)` or `|A|` is calculated as:
`|A| = det(A) = a * d - b*c`

`:. |(1,2),(1,3)| = (1)(3) - (2)(1)`
`:. |(1,2),(1,3)| = 3 - 2`
`:. |(1,2),(1,3)| = 1`