Complex Numbers Day 1

What does i² = ?

• -1
• √-1
• 1
• -√1

Tags

CCSS.HSN.CN.A.1

Simplify.

• -5i
• 5
• 5i
• -5

• 10
• -10
• 10i
• -10i

• 5i

• 5

• -5i

• -5

Simplify:
i⁷

• i
• -i
• 1
• -1

Tags

CCSS.HSN.CN.A.1

i⁵²

• i
• -i
• 1
• -1

Tags

CCSS.HSN.CN.A.2

Leon is asked to simplify √-120. A good first step would be to...

• divide 120 by 2

• replace the negative with an i on the outside of the radical

• take the square root of -120

• graph y = √-120

i⁶⁶

• 1
• i
• -1
• -i

Tags

CCSS.HSN.CN.A.2

Simplify:
(3 + 2i) + (4i + 6)

• 9 + 6i
• 7i + 8
• 9 + 6i²
• 9 - 6i

Tags

CCSS.HSN.CN.A.2

Simplify:
(4 + 7i) - (3 + 2i)

• 1 + 5i
• 7 + 9i
• 1 + 9i
• -1 + 5i

Tags

CCSS.HSN.CN.A.2