+0

Math

0
27
1
+24

Complex number z lies on the circle centered at 0 with radius 5. What is |z^3|?

grif389  Oct 13, 2018
#1
+2389
+1

$$z = 5 e^{i \theta} \\ z^3 = 5^3 e^{i3\theta} \\ |z^3| = 5^3 = 125$$

Rom  Oct 14, 2018