Linear Algebra - Lecture 9 - Matrix Equations

In this lecture, we define the product of a matrix by a vector. We also discuss matrix equations and their connection to systems of linear equations and vector equations.

[dresenpai]

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[brethagen]

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[yixingtang]

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[xoppa]

Finding a pivot in the last column of an echelon matrix is inconsistent - very well said.
Clearly a pivot must be non zero, otherwise it wouldn't be a pivot, so we don't need to say nonzero pivot.

[hrhgehc]

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[lucci]

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[ramakrishnachinthamsetty]

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[mohdmohd]

10:15
It could have infinite solutions if (b1, b2, b3)= (0, 0, 0)
correct me if I am wrong

[jamestanny]

Souldn't the question specify that b is not equal to eachother and not zero?