Solve a 4x4 System using Determinants

[nxzx]

Is it possible to solve 4 equations with 4 unknowns with determinant?

 

[mmm4444bot]

Yes. You may use Cramer's Rule with a 4x4 augmented coefficient matrix.

Scroll down at the following URL, to see a 4x4 example:

http://math.tutorvista.com/algebra/cramers-rule.html

 

[stapel]

Is it possible to solve 4 equations with 4 unknowns with determinant?

Note: Cramer's Rule (here) will work only if the solution is unique. If the solution is parameterized, or if it doesn't exist, Cramer's Rule will fail, and you'll have to use other methods.

 

[mmm4444bot]

Cramer's Rule [works for a 4x4 system] only if the solution is unique.

Thanks, stapel. I did not know that. :cool: