# Math Help - Matrices 

1. ## Matrices

is there a faster way to find the determinant of a matrix that is greater than a 3 x 3, finding cofactors are so time consuming, and my teacher showed us a way but he couldn't explain it very well

i have it in my notes but i get lost

2. Originally Posted by >_<SHY_GUY>_<
is there a faster way to find the determinant of a matrix that is greater than a 3 x 3, finding cofactors are so time consuming, and my teacher showed us a way but he couldn't explain it very well

i have it in my notes but i get lost
Not as far as I've been taught. I'd also be interested if there were an easier, quicker method.

3. Have you taught in how to turn a matrix into triangular one? That helps sometimes, 'cause the determinant is just the product of the diagonal.