### Home > A2C > Chapter 9 > Lesson 9.2.1 > Problem 9-73

9-73.

Explain why *i*^{3} = −*i*. What does *i*^{4} equal? Homework Help ✎

*i* ^{3} = *i* ^{2} · *i*

*i* ^{4} = 1

9-73.

Explain why *i*^{3} = −*i*. What does *i*^{4} equal? Homework Help ✎

*i* ^{3} = *i* ^{2} · *i*

*i* ^{4} = 1