Complex Numbers

What is i?

• -1

• 1

• $\sqrt{1}$

• $\sqrt{-1}$

 $\sqrt{-100}$  

• 10i

• -10

• $\pm10i$

• -10i

What is i²?

• 1

• -1

• i

• -i

What is i³?

• 1

• -1

• i

• -i

i⁷

• i
• -i
• 1
• -1

Tags

CCSS.HSN.CN.A.2

i⁶⁶

• 1
• i
• -1
• -i

Tags

CCSS.HSN.CN.A.2

i⁵²

• i
• -i
• 1
• -1

Tags

CCSS.HSN.CN.A.2

i¹³

• -1
• 1
• i
• -i

Tags

CCSS.HSN.CN.A.1

Simplify:
(3 + 2i) + (4i + 6)

• 9 + 6i
• 7i + 8
• 9 + 6i²
• 9 - 6i

Tags

CCSS.HSN.CN.A.2

Simplify:
(4 + 7i) - (3 + 2i)

• 1 + 5i
• 7 + 9i
• 1 + 9i
• -1 + 5i

Tags

CCSS.HSN.CN.A.2