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Exercise 2.1.1

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The row picture for $A = I$ has 3 perpendicular planes $x = 2$ and $y = 3$ and $z = 4$ . Those are perpendicular to the $x$ and $y$ and $z$ axes: $z = 4$ is a horizontal plane at height 4.

The column vectors are $i = (1, 0, 0)$ and $j = (0, 1, 0)$ and $k = (0, 0, 1)$ . Then $b =$ $(2, 3, 4)$ is the linear combination $2 i + 3 j + 4 k$ .

mathchakra

2021-11-20 14:36

Exercise 2.1.1

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