Review Complex Numbers

Simplify

 $\left(3-i\right)\left(-4+2i\right)$  

•  $-10+2i$  

•  $-14+10i$  

•  $-12+2i$  

•  $-10+10i$  

Tags

CCSS.HSN.CN.A.2

Simplify

 $\frac{3-i}{-2+2i}$  

•  $-\frac{3}{2}-\frac{1}{2}i$  

•  $\frac{3}{8}-\frac{1}{8}i$  

•  $-1-\frac{1}{2}i$  

•  $-\frac{1}{2}-\frac{1}{2}i$  

Tags

CCSS.HSN.CN.A.3

What letter usually represent imaginary number?

• a
• i
• j
• x

Tags

CCSS.HSA.APR.B.2

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

• -60i
• 60
• -60
• 60i

Tags

CCSS.HSA.APR.A.1

• 5i
• -5i
• 5+i
• -5

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify: 
(10+ 15i)-(48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Tags

CCSS.HSA.APR.A.1

Simplify:

√-108

To get credit on the quiz tomorrow: you have to show the process.

• 3i√6

• 3i√20

• 6i√3

• 20i√3

What is the complex conjugate of  4-3i?

• A.  1/(4-3i)
• B. 1/(4+3i)
• C.  -4 + 3i
• D.  4 + 3i

Tags

CCSS.HSA.APR.A.1

 Simplify.

• ^-1/₇
• ^-i/₇
• ⁱ/₇
• ^-1/_7i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

Simplify  $\sqrt{-1}^{31}$  

•  $i$  

•  $-i$  

• 1

• -1