Question
In Exercises $18-23,$ calculate the linear combinations.$$5(\mathbf{i}+2 \mathbf{j})-3(2 \mathbf{j}+\mathbf{k})+7(2 \mathbf{k}-\mathbf{i})$$
Step 1
This means multiplying each vector inside the brackets by the constant outside the brackets. This gives us: $$ 5\mathbf{i}+10\mathbf{j}-6\mathbf{j}-3\mathbf{k}+14\mathbf{k}-7\mathbf{i} $$ Show more…
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