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Linear Algebra: Matrices

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More Lessons for Vectors
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A series of linear algebra lectures on matrices in videos by Khan Academy.

Using Matrices to Solve a System of Equations

Using the inverse of a matrix to solve a system of equations.

Using Matrices to Solve a Vector Combination Problem

Using matrices to figure out if some combination of 2 vectors can create a 3rd vector.

Singular Matrices

When and why you can't invert a matrix.

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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