Imaginary Numbers

Every power of i that is greater than 4 is equivalent to either i, i², i³, or i⁴

• True

• False

Find the value of i⁶¹

• -1

• i

• 1

• -i

Tags

CCSS.HSN.CN.A.1

 $i^{11}$  Find the value of

• - $i$  

•  $i$  

• -1

• 1

Which of he following are equivalent to  $i^{18}$  ? Select all that apply.

•  $i^2$  

• -1

•  $i^4$  

•  $\sqrt{-1}$  

The imaginary number i represents which of the following?

• -1

• $-\sqrt{-1}$

• $\sqrt{1}$

• $\sqrt{-1}$

Tags

CCSS.HSN.CN.A.1

Which of the following are equivalent to i⁴⁴? Select all that apply.

• i⁴

• -1

• i²

• 1

Tags

CCSS.HSN.CN.A.2

 $\sqrt{-81}$  

• -9

• 9i

•  $\pm9$  

• -9i

 $-\sqrt{-25}$  

•  $5i$  

• -5

• 5

•  $-\left(5i\right)$