CAPE Pure Mathematics Unit 1 · May/June 2014 · Paper 1 · Question Q19
The expression \sin 6\theta + \sin 4\theta may be expressed as
- (A)
\sin 10\theta - (B)
-2\cos 2\theta - (C)
2\sin 5\theta \cos \theta - (D)
2\cos 5\theta \sin \theta
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