Concepts in complex numbers

The opposite of a real number is...

• an unreal number

• an imaginary number

• a fake number

• a contradictory number

Tags

CCSS.HSN.CN.A.1

• Real Part is 7

• Real Part is -7

• Real Part is -8

• Real Part is 8

Tags

CCSS.HSN.CN.A.1

The largest group of numbers is...

Tags

CCSS.HSN.CN.A.1

What is the real part of 13.2i+1?

• 13.2

• -1

• 1

• -13.2

Tags

CCSS.HSN.CN.A.1

Which expression is written in the correct order for a complex number?

• 4i - 5

• i4 - 5

• 5 - i4

• 5 - 4i

Tags

CCSS.HSN.CN.A.1

Which of the following are complex numbers?

• $1+2i$

• $5i$

• $\pi i$

• $24+\left(0\times i\right)$

Tags

CCSS.HSN.CN.A.1

Every complex number is real number

• True

• False

• Can't say

Tags

CCSS.HSN.CN.A.1

Name the imaginary number "part" of the complex number: 5 - 4i

• 5

• -4i

• 0

Tags

CCSS.HSN.CN.A.1

Evaluate  $6+\sqrt{-121}$  

• -5

• -66

• 17

• No real roots

Tags

CCSS.HSN.CN.A.1

Which of the numbers is non-real? (select all that apply)

•  $\sqrt{-7}$  

•  $\frac{27}{0}$  

•  $\frac{0}{103}$  

•  $\sqrt{0}$  

•  $\pi$  

Tags

CCSS.HSN.CN.A.1