Question
Given vectors u and v, find: (a) 2u (b) 2u+3v (c) v-3u. See Example 4.$$\mathbf{u}=-\mathbf{i}+2 \mathbf{j}, \quad \mathbf{v}=\mathbf{i}-\mathbf{j}$$
Step 1
We are asked to find 2u, which means we need to multiply each component of vector u by 2. So, $2\mathbf{u}=2(-\mathbf{i}+2 \mathbf{j})=-2\mathbf{i}+4\mathbf{j}$. Show more…
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