# How do you find the determinant of #|(4,6,7),(3,-2,-4), (1,1,1)|#?

##### 1 Answer

Aug 3, 2017

The Rule of Sarrus! ->

#### Explanation:

Order three determinants follow The Rule of Sarrus . Consider a matrix

The Rule of Sarrus says:

These pictures may help in understanding what this rule does:

Positive sign:

Negative sign:

In your case: