Question

$z_1^3+z_2^3=20+15i$ then $|z_1^4+z_2^4|$ is equal to

• A. $15\sqrt {15}$
• B. $75$
• C. $30\sqrt 3$
• D. $25\sqrt 3$

Answer 1

Answer: (B)

$75$

Answer 2

The correct option is (B): 75.