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Multiplying Matrices
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This precalculus video tutorial provides a basic introduction into multiplying matrices. It explains how to tell if you can multiply two matrices together and how to determine the order of the new matrix. The order of the new matrix is based on the rows of the first matrix and the number of columns in the second matrix. To multiply two matrices together, multiply the rows of the first matrix by the columns of the second matrix and find the sum of the products. This video contains plenty of examples and practice problems on matrix multiplication.
Introduction to Matrices:
Adding and Subtracting Matrices:
Scalar Multiplication of Matrices:
Solving Matrix Equations:
Multiplying Matrices:
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Gaussian Elimination & Row Echelon Form:
Gauss Jordan Elimination:
Gaussian Elimination With 4 Variables:
Inverse of a 2x2 Matrix:
Inverse of a 3x3 Matrix:
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Determinant of 2x2 and 3x3 Matrix:
Determinant of 4x4 Matrix:
Cramer's Rule - 2x2 Linear System:
Cramer's Rule - 3x3 Linear System:
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Final Exams and Video Playlists:
Full-Length Videos and Worksheets:
Introduction to Matrices:
Adding and Subtracting Matrices:
Scalar Multiplication of Matrices:
Solving Matrix Equations:
Multiplying Matrices:
__________________________________
Gaussian Elimination & Row Echelon Form:
Gauss Jordan Elimination:
Gaussian Elimination With 4 Variables:
Inverse of a 2x2 Matrix:
Inverse of a 3x3 Matrix:
__________________________________
Determinant of 2x2 and 3x3 Matrix:
Determinant of 4x4 Matrix:
Cramer's Rule - 2x2 Linear System:
Cramer's Rule - 3x3 Linear System:
___________________________________
Final Exams and Video Playlists:
Full-Length Videos and Worksheets:
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