Question
Find the projection of $\mathbf{u}$ onto $\mathbf{v}$. Draw a sketch in Exercises 40 and 41.$$\mathbf{u}=\left[\begin{array}{r}1 \\-1 \\1 \\-1\end{array}\right], \mathbf{v}=\left[\begin{array}{r}2 \\-3 \\-1 \\-2\end{array}\right]$$
Step 1
This is calculated as follows: $$\mathbf{u} \cdot \mathbf{v} = (1 \times 2) + (-1 \times -3) + (1 \times -1) + (-1 \times -2) = 2 + 3 - 1 + 2 = 6.$$ Show more…
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