### Home > PC > Chapter 11 > Lesson 11.2.2 > Problem 11-86

11-86.

Use DeMoivre’s theorem to find the value of (cos(*i* sin(^{6}. Homework Help ✎

Using the theorem, *r* = 1, *n* = 6, and *θ* = *π*/12.

11-86.

Use DeMoivre’s theorem to find the value of (cos(*i* sin(^{6}. Homework Help ✎

Using the theorem, *r* = 1, *n* = 6, and *θ* = *π*/12.