# Formulas for system of equations: Matrix form

Do you need help remembering all the formulae needed to solve a system of equation? I could help with this video.

This video gives the formulas for the echelon form, normal form and rank of a matrix. The Gauss elimination method and the Gauss Jordan method formulas are given. The method for Gauss Seidel iterative method is given. Lastly, I conclude with the adjoint of a matrix and how to calculate inverse of a matrix using adjoint. The entire course " Trigonometry class 11 notes" is available at a discount on a first come basis.

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