Imaginary Numbers- Intro

What letter usually represent imaginary number?

• a
• i
• j
• x

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CCSS.HSN.CN.A.1

• i

• -1

• 1

• -i

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CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

What does i² =  ?

• 1
• -1
• √-1
• √1

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CCSS.HSN.CN.A.1

Translate the phrase above...

• One two is bigger than 3 pies.

• One eight sum pi.

• I ate some pie.

• I like 8 pies too.

Simplify √-4

• 2i
• -2i
• 2
• 4i

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CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify -√-8

• -i√8
• -2i√2
• 2i√2
• -8i

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CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

i⁷

• i
• -i
• 1
• -1

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CCSS.HSN.CN.A.1

i¹³

• -1
• 1
• i
• -i

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CCSS.HSN.CN.A.2

Simplify √-23

• -√23
• 23i
• 23
• i√23

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CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify -√-48

• 4i√3
• -4i√3
• i√48
• -48i

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CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2