Solving 3 Equations for 3 Unknowns Using a Matrix in Row Echelon Form
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YouTubeDr. Pierce's Physics & Math
Solving 3 Equations for 3 Unknowns Using a Matrix in Row Echelon Form
Equations remain valid if multiplied by constants or added to other valid equations. For that reason, rows of matrices can be multiplied by constants or added together. We use that idea to solve systems of three equations for 3 unknowns by getting a matrix into "row echelon form," in which all entries below the diagonal are zero. A matrix in ...
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