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AQA L2 Further Maths Questions

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

Reply 1

SpunkyTom

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. :smile:

Reply 2

nielsbohr

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. :smile: