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1 Unit 1: Pure Mathematics A

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Question 235

It is given that a=−5i+7j\mathbf{a} = -5\mathbf{i} + 7\mathbf{j}a=−5i+7j and b=4i+6j\mathbf{b} = 4\mathbf{i} + 6\mathbf{j}b=4i+6j.

Find 2a−3b2\mathbf{a} - 3\mathbf{b}2a−3b.

[2]
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1 Unit 1: Pure Mathematics A Questions

  1. A Level
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