ID sets ALG II
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Last updated 10:04 PM on 8/22/23
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15 Terms
1
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counting/natural numbers
positive integers
2
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whole numbers
positive integers including zero
3
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integers
whole numbers and their opposites (negatives)
4
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rational numbers
can be expressed as a fractions, terminating, and repeating decimals
5
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irrational numbers
cannot be expressed as a ratio or fraction (decimals ending in …, square roots)
6
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trancendental numbers (π, e)
cannot be expressed as roots of integers (π, e)
7
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real numbers
numbers with a place on the number line
8
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imaginary numbers
numbers with no place on the number line. (square roots of negative numbers, and nj)
9
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complex numbers
all numbers, both real and imaginary
10
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negative numbers
less than 0, including fractions
11
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positive numbers
greater than 0, including fractions
12
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non-integers
fractions, decimals, all irrational numbers
13
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radicals
the little number on the square root thing
14
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even numbers (integers)
numbers divisible by 2, including 0
15
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odd numbers (integers)
not divisable by 2
