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# AQA L2 Further Maths Questions

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1. Did anyone know how to work out the final question for the AQA Further Maths Paper 1 today? It's driving me insane! I know it's to do with the cosine rule.

Thanks
2. (Original post by nielsbohr)
Did anyone know how to work out the final question for the AQA Further Maths Paper 1 today? It's driving me insane! I know it's to do with the cosine rule.

Thanks
You had to put the numbers from the diagram into the cosine rule to eventually get 3n=w, meaning the two sides were the same length, so the triangle was isosceles.
3. (Original post by SpunkyTom)
You had to put the numbers from the diagram into the cosine rule to eventually get 3n=w, meaning the two sides were the same length, so the triangle was isosceles.
I tried that :/ and got: w^2 - 2wn + 5n^2
I know it doesn't really matter and it's only 4 marks but it's annoying me!

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