Specialist2023 Exam 1 · Q2Tech-free3 marks

Argument of a cube of a complex number

Consider the complex number $z = (b - i)^3$ , where $b \in R^+$ .

Find $b$ given that $\arg(z) = -\frac{\pi}{2}$ .

3 marks

Hints, answer checking and worked solutions come with a Season Pass.

Specialist2023 Exam 1 · Q2Tech-free3 marks

Consider the complex number $z = (b - i)^3$ , where $b \in R^+$ .

Find $b$ given that $\arg(z) = -\frac{\pi}{2}$ .

3 marks

Hints, answer checking and worked solutions come with a Season Pass.