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Free Vectors

I have been trying to complete a question but do not fully understand how to get to the solution. I have attached the diagram. Thanks for the help in advance.

The question is Using Figure 8.10 express the following vectors in terms of _a and _b
1. PR
Original post by cosv
I have been trying to complete a question but do not fully understand how to get to the solution. I have attached the diagram. Thanks for the help in advance.

The question is Using Figure 8.10 express the following vectors in terms of _a and _b
1. PR



I assume it's a regular hexagon. What are its properties?

Look for parallel lines and see if that helps.

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