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Clavis TMUA Set C Paper 1 · Q1

Paper 1TrigonometrySequences & series

Find the value of

∑k=025sin⁡(30+90k)∘.\sum_{k=0}^{25}\sin(30+90k)^\circ.
A00
B12\frac12
C32\frac{\sqrt3}{2}
D11
E1+32\frac{1+\sqrt3}{2}
F1+31+\sqrt3

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