Number System and Imaginary Numbers
Authored by Nicholas Prear
Mathematics
9th - 12th Grade
Used 5+ times
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7 questions
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1.
MATCH QUESTION
1 min • 5 pts
Match the following to the BEST (most exact) category that it belongs to
whole number
-4
irrational
rational
5
integer
0
natural number
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of real number has the following definitions?
- a non-repeating, non-terminating decimal,
- cannot be written as a fraction
irrational
prime
rational
imaginary
3.
MULTIPLE SELECT QUESTION
30 sec • 4 pts
The number belongs to what number system(s)?
natural number
whole number
integer
rational number
imaginary number
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The value of π cannot be written as the ratio of two integers. Which statement is true?
π is a rational number.
π is an irrational number.
The decimal expansion of π terminates.
The decimal expansion of π repeats.
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
i
-1
1
-i
6.
MATCH QUESTION
1 min • 5 pts
Match the following non-real roots with their complex number form: where is a real number.
7.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Solve the equation
x = ±5i
x = -25
x = ±5
I really didn't get this.
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