CAPE Pure Mathematics Unit 2 · May/June 2016 · Paper 1 · Question Q5
The value of \left(\cos \frac{\pi}{2} + i\sin \frac{\pi}{2}\right)^2 is
- (A)
-2 - (B)
-1 - (C)
1 - (D)
2
The answer is shown once you've answered.
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