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1 Unit 1: Pure Mathematics A

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Question 242

The point A A\,A has position vector 3i+4j3\mathbf{i} + 4\mathbf{j}3i+4j and the point B B\,B has position vector −4i+7j-4\mathbf{i} + 7\mathbf{j}−4i+7j.

a.

Find the vector AB⃗\vec{AB}AB.

[2]
b.

Find ∣AB⃗∣\left|\vec{AB}\right|​AB​.

[2]
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1 Unit 1: Pure Mathematics A Questions

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