Operations with complex numbers

Simplify √-4

• 2i
• -2i
• 2
• 4i

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CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

CCSS.HSN.RN.A.1

CCSS.HSN.RN.A.2

What does i² =  ?

• 1
• -1
• √-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 √-28

• -√28
• -2i√7
• 2i√7
• 28i

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CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

Simplify 2√-32

• 2i√32
• 4i√2
• 8i√2
• -16i√2

Tags

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

CCSS.HSN.RN.A.1

CCSS.HSN.RN.A.2

Simplify
2i - 7i + 10

• -5i+10
• 5i
• 9i+10
• 5i+10

Tags

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

How do you write a complex number?

• a-bi

• a+bi

• ai+b

• ai-b

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CCSS.HSN.CN.A.1

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CCSS.HSN.CN.A.2

Simplify:

(10+ 15i) - (48 - 30i)

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

Tags

CCSS.HSN.CN.A.2