AnswersPrecalculusPowers and Roots of Complex Numbers — Unit testQuestion 23
23
QuizMultiple Choice

Powers and Roots of Complex Numbers — Unit test

Question 23 of 25 • Precalculus

Let z = 9 – 2i and zw = 25 + 70i.What is w?

Answer
A
1 + 8i
B
1 – 8i
C
–1 + 8i
D
–1 – 8i
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