CAPE Pure Mathematics Unit 1 · May/June 2010 · Paper 1 · Question Q27
\frac{\sin\theta - \sin\alpha}{\cos\theta + \cos\alpha} is identical to
- (A)
-\tan\alpha - (B)
\tan\alpha - (C)
\tan\left(\frac{\theta + \alpha}{2}\right) - (D)
\tan\left(\frac{\theta - \alpha}{2}\right)
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