### Home > PC > Chapter 11 > Lesson 11.2.2 > Problem 11-88

11-88.

Use your results from problem 11-87 to find the value of

Use De Moivre's theorem with *n* = 1/3.

11-88.

Use your results from problem 11-87 to find the value of

Use De Moivre's theorem with *n* = 1/3.