If |z|/w = 4,which of the following must be true?  Choose the most appropriate option: A) z = -4w B) z = 4w C) z^2 = 16w^2 D) z^2 = 16w^3 E) z^3 = 64w^3
|z|/w = 4.   |z| = 4w.   Then z = 4w or -4w and so z^2 = 16w^2.   The answer is z^2 = 16w^2.
<result>C</result>
If |z|/w = 4,which of the following must be true?