Question

How do you find the value of the determinant `|(12,-26), (-15,32)|`?

Answer 1

The answer is `=-6`

Explanation:

The calculation of a `2`x`2` determinant is

`| (a,b), (c,d) |` `=a*d-b*c`

So,

`| (12,-26), (-15,32) | =12*32-(-26)*(-15)`

`=12*32-26*15=384-390=-6`