CAPE Pure Mathematics Unit 1 · 2008 (Rest of Region) · Paper 1 · Question Q21
\sin(30^\circ - A) is equal to
- (A)
\frac{1}{2}\cos A - \frac{\sqrt{3}}{2}\sin A - (B)
\frac{1}{2}\cos A + \frac{\sqrt{3}}{2}\sin A - (C)
\frac{\sqrt{3}}{2}\cos A + \frac{1}{2}\sin A - (D)
\frac{\sqrt{3}}{2}\cos A - \frac{1}{2}\sin A
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