Imaginary Numbers

Simplify √-4

• 2i
• -2i
• 2
• 4i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

Simplify √-81

• -√81
• -9i
• 9i
• 81i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Multiply:
(2-5i)(2+5i)

• 29
• 4 - 25i
• 25 - 10i
• -21

Tags

CCSS.HSN.CN.C.8

i⁷⁹

• i
• 1
• -1
• -i

Tags

CCSS.HSN.CN.A.2

(2i)(3i)

• 5i
• -5
• 6i²
• -6

Tags

CCSS.HSN.CN.A.2

i¹³

• -1
• 1
• i
• -i

Tags

CCSS.HSN.CN.A.2

What is i¹²⁹?

• -i
• i
• 1
• -1

Tags

CCSS.HSN.CN.A.2

• 2i√6

• 8i√3

• -2√6

• -2i√6

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

• √2

• i√2

• i²√2

• -√2

Tags

CCSS.HSN.CN.A.2

Which quadratic has COMPLEX roots?

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7A