(Feb 17) HW: Complex Numbers Practice

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

Simplify:
-3i(4 + 2i)

• 6 - 12i
• 6 + 12i
• -12i - 6i²
• -12i + 6i²

Tags

CCSS.HSN.CN.A.2

Simplify:
(2 - 3i)(5 + 4i)

• 22 - 7i
• 22 + 7i
• 22 - 7i²
• 22 + 7i²

Tags

CCSS.HSN.CN.A.2

3+√-4

• 1

• 3-2i

• 5

• 3+2i

Tags

CCSS.HSN.CN.A.1

(2i)(3i)

• 5i
• -5
• 6i
• -6

Tags

CCSS.HSN.CN.A.2

2 - √-9

• 2-3i

• 2+3= 5

• 2+3i

• 2 - 3= -1

Tags

CCSS.HSN.CN.A.1

-6i+3i

• 3i
• -3i
• -2i
• -3i²

Tags

CCSS.HSN.CN.A.2

The imaginary unit i is equal to _____

• $\sqrt{-1}$

• 1

• -1

• It's imaginary so it can be whatever you want it to be!

Tags

CCSS.HSN.CN.A.1

i² = what?

• -1

• 1

• i

• -i

Tags

CCSS.HSN.CN.A.1