Operations of Complex Numbers

What does i² = ?

• -1
• √-1
• 1
• -√1

Tags

CCSS.HSN.CN.A.1

What is the "real part" of the complex number (-2+7i)?

• 2

• -2

• 7i

• -7i

Tags

CCSS.6.EE.A.2B

What is the "imaginary part" of the complex number (-2+7i)?

• 2

• -2

• 7i

• -7i

Tags

CCSS.6.EE.A.2B

Simplify i³⁷

• 1

• i

• -i

• -1

Tags

CCSS.HSN.CN.A.2

Simplify i²⁴

• i

• 1

• -1

• -i

Tags

CCSS.HSN.CN.A.1

• 5i
• -5i
• 5+i
• -5

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

Simplify.

• 
• 
• 
• 

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.2

 $\left(\sqrt{25}-2i\right)+\left(-7+2\sqrt{-16}\right)$  

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Find the sum.
(5-2i) + (-7+8i)

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Tags

CCSS.HSN.CN.A.2

What is the simplifies form of (11 - 7i) - (-3 + 12i)

• 8 - 19i

• 8 + 5i

• 13- 19i

• 14 -19i

Tags

CCSS.HSN.CN.A.2