\text{taking the real/imaginary part (?)}[br]= \dfrac{\cos(\theta/2)-\cos(n+1/2)\theta}{-2i\sin(\theta/2)}}
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Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
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Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrong71