Find a + ib for the numbers at angles 30°, 60°, 90°, 120° on the unit circle. If w is the number at 30°, check that w2 is at 60°. What power of w equals 1?

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter51: Protractors—simple Semicircular And Vernier
Section: Chapter Questions
Problem 8A: Write the values of angles F-J on the preceding protractor.
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Find a + ib for the numbers at angles 30°, 60°, 90°, 120° on the unit circle. If w is the number at 30°, check that w2 is at 60°. What power of w equals 1?

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