CAPE Pure Mathematics Unit 2 · May/June 2017 · Paper 1 · Question Q5
\bar{z} is the conjugate of z. Which of the following are always true?
I. |\bar{z}| = |z|
II. \arg z = \arg \bar{z}
III. z\bar{z} is real
- (A)I and II only
- (B)I and III only
- (C)II and III only
- (D)I, II and III
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