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ACSEE (Form 6) Complex Numbers — practice questions

3 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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The locus $\left|\dfrac{z-2}{z+3i}\right|=4$ simplifies to which equation?If $\alpha$ and $\beta$ are roots of $z^2+4z+8=0$, then $\dfrac{\alpha+\beta+4i}{\alpha\beta+8i}$ in simplest Using De Moivre's theorem, the complex roots of $z^3=1$ are: