Finding inverse of 3x3 matrix

IS Gauss Jordon Method the quickest and easiest way to do this?

Yes.

Yep it's long but there's nothing better

IS Gauss Jordon Method the quickest and easiest way to do this?

I personally will not use Jordan Gauss for a 3x3
For 4x4 upwards definitely

Personally, I'd note that, for a 3x3 Matrix

A

A^{-1} = \dfrac{1}{\det(A)} \text{ad}j(A)

(edited 8 years ago)

I personally will not use Jordan Gauss for a 3x3
For 4x4 upwards definitely

Original post by Indeterminate

Personally, I'd note that, for a 3x3 Matrix

A

A^{-1} = \dfrac{1}{\det(A)} \text{ad}j(A)

Great thanks for that.

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