Question

Use De Moivre's Theorem to write the complex number in trigonometric form.

(cos(3π/12) + isin(3π/12))^5


A) cos(3π/60) + isin(3π/60)

B) 5(cos(3π/12) + isin(3π/12))

C) cos(3π/12)^5 + isin(3π/12)^5

D) cos(15π/12) + isin(15π/12)

Answer 1

Read the first line of the site and apply to your problem http://www.mathwords.com/d/demoivres_thm.htm