Simplify the number by using the imaginary number i.

 $\sqrt{-40}$  

•  $2i\sqrt{10}$  

•  $-2i\sqrt{10}$  

•  $8i\sqrt{5}$  

•  $-8i\sqrt{5}$  

Simplify the number by using the imaginary number i.

 $\sqrt{-63}$  

•  $-3i\sqrt{7}$  

•  $9i\sqrt{7}$  

•  $-9i\sqrt{7}$  

•  $3i\sqrt{7}$  

Write the complex number in the form a+bi.

 $5+\sqrt{-25}$  

•  $5-5i$  

•  $5+5i$  

•  $-5+5i$  

•  $5+5i\sqrt{5}$  

Tags

CCSS.HSN.CN.A.1

Write the complex number in the form a+bi.

 $\sqrt{-45}\ -13$  

•  $-13+3i\sqrt{5}$  

•  $13-3i\sqrt{5}$  

•  $-13-3i\sqrt{5}$  

•  $-13+5i\sqrt{3}$  

Tags

CCSS.HSN.CN.A.1

Write the complex number in the form a+bi.

 $-\sqrt{-50}-3$  

•  $3-5i\sqrt{2}$  

•  $-3+2i\sqrt{5}$  

•  $-3-5i\sqrt{2}$  

•  $3+2i\sqrt{5}$  

Tags

CCSS.HSN.CN.A.1

Write the complex number in the form a+bi.

 $-\sqrt{-44}+7$  

•  $-7+2i\sqrt{11}$  

•  $7-2i\sqrt{11}$  

•  $7-11i\sqrt{2}$  

•  $-7-11i\sqrt{2}$  

Tags

CCSS.HSN.CN.A.1

Find

 $i^{72}$  

• 1

• -1

• i

• -i

Tags

CCSS.HSN.CN.A.2

Find

 $i^{435}$  

• 1

• -1

• i

• -i

Tags

CCSS.HSN.CN.A.2

Find

 $i^{5321}$  

• 1

• -1

• i

• -i

Tags

CCSS.HSN.CN.A.2

Find

 $i^{1222}$  

• 1

• -1

• i

• -i

Tags

CCSS.HSN.CN.A.2