Question
If the vectors $\mathbf{u}$ and $\mathbf{v}$ are not parallel, prove that$$a \mathbf{u}+b \mathbf{v}=c \mathbf{u}+d \mathbf{v} \Rightarrow a=c, b=d$$
Step 1
Step 1: Subtract the two equal expressions to get (aโc)u + (bโd)v = 0. Show more…
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