Unified 3 Algebra Final Review_Imaginary Numbers

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i
• 7 − i 
• 1 − 13i
• 1 − i 

What does i² =  ?

• 1
• -1
• √-1
• √1

Calculate:
-4 (13 + 5i) 

• -52 − 20i
• 9 + i
• 17 − 20i
• -52 + 20i

Calculate (multiply):
 (4 + 3i)(4 − 3i)

• 16 − 9i²
• 25
• 7
• 8 − 6i

Calculate(Divide, multiply by conjugate):

• 12/5 − 4/5i
• -8/10i − 4/5 
• -4/5 + 12/5i
• 12/5 + 4/5i

Calculate(Divide, multiply by conjugate):

• -3/4 − 1/4i
• 3/4 + 1/4i
• -3/4 + 1/4i
• 3/4 − 1/4i

i¹³

• -1
• 1
• i
• -i

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

• -60i
• 60
• -60
• 60i

what does i ^ 129 =?

• -i
• i
• 1
• -1

Simplify
2i - 7i + 10

• 10 - 5i
• 5i
• 10 + 9i
• 10 + 5i

Tags

CCSS.HSN.CN.A.2