Complex Numbers 1

What does i² = ?

• -1
• √-1
• 1
• -√1

Tags

CCSS.HSN.CN.A.1

Simplify 
√-25

• -5i
• 5
• 5i
• -5

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

How do you write a complex number?

• a-bi

• a+bi

• ai+b

• ai-b

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CCSS.HSN.CN.A.1

• 10
• -10
• 10i
• -10i

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CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

What letter represents an imaginary number?

• a

• i

• j

• x

Tags

CCSS.HSN.CN.A.1

• True

• False

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CCSS.HSN.CN.A.1

√-4

• -2

• -2i

• 2

• 2i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.1

CCSS.HSN.RN.A.2

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CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

 $\sqrt{-300}$  

•  $-3\sqrt{10}$  

•  $-10\sqrt{3}$  

•  $100i\sqrt{3}$  

•  $10i\sqrt{3}$  

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CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Which of these is a complex number?

• 2

• 4i

• 3 + 5i

• All of them

• none of them

Tags

CCSS.HSN.CN.A.1