5
QuizMultiple Choice
Add and Subtract Complex Numbers
Question 5 • CUSD Advanced Math A (5.0)
Consider w = 2(cos(210°) + isin(210°)) and z = 2(cos(330°) + isin(330°)). What is w – z expressed in rectangular form?
Answer
A
2iB
–2iC
–2 + 0i
D
–2 – 2i