Multiply the following complex numbers: 1000 2-30° × 200 2-20°
A) 1200 250°
B) 200,000 2-50°
C) 200,000 250°
D) 800 2-50°

Name: Multiply the following complex numbers: 1000 2-30° × 200 2-20° A) 1200 250° B) 200,000 2-50° C) 200,000 250° D) 800 2-50°
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Question

Quizplus · Accepted Answer

When multiplying complex numbers in polar form, you multiply the magnitudes and add the angles. Here, (1000)(200) = 200,000 for the magnitude, and (-30°) + (-20°) = -50° for the angle.

Multiply the Following Complex Numbers: 1000 2-30° × 200 2-20°