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TMUAmockz Set 1 Paper 1 · Q15

Paper 1TrigonometrySequences & series

Evaluate ∑k=149sin⁡2(kπ50)\displaystyle\sum_{k=1}^{49}\sin^2\left(\dfrac{k\pi}{50}\right).

A00
B12\dfrac12
C492\dfrac{49}2
D2525
E4949
F5050

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