Solving system of 3 equations using determinants | Determinants | Grade 12 | Math | Khan Academy
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Solving system of 3 equations using determinants | Determinants | Grade 12 | Math | Khan Academy
In this video, we bring together everything we've learnt in the chapters of Matrices and Determinants. We find the solution of a system of equations using the matrix method. We first check for consistency, then find the adjoint of matrix A before finding its inverse. We multiply inverse of A with B to find X. We get to this by premultiplying AX ...
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