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Exercise 2.1.22

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The dot product $Ax = [\begin{matrix} 1 & 4 & 5 \end{matrix}] [\begin{matrix} x \\ y \\ z \end{matrix}] = (1$ by 3 $) (3$ by 1 $)$ is zero for points $(x, y, z)$ on a plane in three dimensions. The 3 columns of $A$ are one-dimensional vectors.

mathchakra

2021-11-20 14:44

Exercise 2.1.22

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