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1. AF in terms of AB

2. AE in terms of AB and BC
3. BC in terms of AF and EC

Jhiska doesnt allow me to post urls so can you please search in "Intro to Vectors MCV4U U1A2 Assignment Question1 Support" on youtube which shows the diagram needed to answer this question.

1 answer

clearly, AF = 1/2 AB

AE = AF + FE
= AB/2 + BC/2

BC = 2FE
Now, since AF+FE=AE, FE=AE-AF
BC = 2(AE-AF) = 2(EC-AF)
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