IGCSE
EDEXCEL
Further Mathematics
14 Marks
QP-FurtherPureMath-202410-U2 · Question 9
Question (excerpt):
24 9 (a) Using a formula given on page 2, show that cos cos 2 2 1 2 (2) (b) Hence show that 2 1 2 3 3 4 cos d a b c where a, b and c are integers to be found. (4)  R y A E B C2 C1 O Di…
24 9 (a) Using a formula given on page 2, show that cos cos 2 2 1 2 (2) (b) Hence show that 2 1 2 3 3 4 cos d a b c where a, b and c are integers to be found. (4)  R y A E B C2 C1 O Di…
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