CPM Homework Help : A2C Problem 9-73

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Home > A2C > Chapter Ch9 > Lesson 9.2.1 > Problem 9-73

9-73.

Explain why $i^{3} = −i$ . What does $i^{4}$ equal?

Hint:

$i ^{3} = i ^{2} · i$

Answer:

$i ^{4} = 1$

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