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Video starts with reviewing matrix notation. Defines multiplying a matrix by a vector and shows examples. Shows how the matrix-vector products can be interpreted as the dot product of column vectors with a matrix or as a weighted linear combination of column vectors. [21:10]
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column vector, dot product, matrix vector multiplication, multiplying matrices and vectors, row vector, ccss.math, hsn-vm.c.11, khan academy, khan academy math, khan academy: linear algebra: matrix-vector products, khan academy: linear algebra: matrix-vector products hsn-vm.c.11, oh.math.hsn.vm.11, matrices and matrix operations, vector arithmetic
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