Let and . Verify that by calculating both…

MATHEMATICS · Subjective · A Level · Mathematics · Vectors · Vectors

Problem

Let a=2i^−j^+3k^\mathbf{a}=2\hat{i}-\hat{j}+3\hat{k} and b=i^+4j^−2k^\mathbf{b}=\hat{i}+4\hat{j}-2\hat{k}. Verify that a+b=b+a\mathbf{a}+\mathbf{b}=\mathbf{b}+\mathbf{a} by calculating both sums.

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