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Complex numbers 2 — Question 1

QCAA 2022, Paper 2 · 1 mark

Q1 · 2022 · Technology-activeSimple familiar1 mark

QUESTION 1

A solution of the equation z2=aiz^2=ai, where a∈Ra\in\mathbb{R}, is z=−2−2iz=-2-2i. The other solution is
(A)
−8i-8i
(B)
−2+2i-2+2i
(C)
2+2i2+2i
(D)
8i8i
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