Complex Numbers Quiz

What is this equal to?

• 10
• -10
• 10i
• -10i

What is the value of √-36?

• 6
• -6
• -6i
• 6i

Simplify: (5 - 2i) + (-7 + 8i)

• -2 + 6i
• 12 + 6i 
• -35 - 16i²
• -35 - 16i

Tags

CCSS.HSN.CN.A.2

Simplify: (10 + 3i) - (2 - 9i)

• 20 - 27i
• 12 - 7i
• 8 + 12i
• 20 - 27i²

Tags

CCSS.HSN.CN.A.2

The expression (2 + 3i)² is equal to:

• -5
• -5 + 12i
• 13
• 13 + 12i

Tags

CCSS.HSN.CN.C.8

Evaluate (9 + 3i)(9 - 3i): 

• 81 - 9i
• 90
• 81 + 27i - 9i²
• 81i - 9

Tags

CCSS.HSN.CN.C.8

i¹³ =

• -1
• 1
• i
• -i

Tags

CCSS.HSN.CN.A.2

i⁸⁶ =

• a.)  i
• b.)  -i
• c.)  -1
• d.)  1

Tags

CCSS.HSN.CN.A.1

Solve x² = -4x - 7?

• A.
• B.
• C.
• D.

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

What is this formula called?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the square root formula.
• This is scary.

Tags

CCSS.HSA-REI.B.4B