TSIA2 Math 47 Questions And Answers
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Terms in this set
47
Natural Number
a number that is greater than 0 and has no decimal attached. These are also sometimes called ( 1, 2,3,4)
whole numbers
natural numbers and greater than 0
Integers
include positive and negative natural numbers and 0 (-4, -3, -2 , -1 0, 1,2,3,4)
rational number
a number that can be represented as a fraction.Any decimal part terminate or resolve into a repeating pattern. ex. -12 -4/5 0.36 7.7 , 26 1/2 ect.
irrational number
cannot be represented by a fraction. an irrational decimal number never ends and never resolves into a repeating pattern. ex inculde -√7 ,pie, and 0.3456798135
real number
a number that can be represented by a point on a number line. Real numbers include all the rational and irrational numbers.
imaginary number
includes the imaginary unit i where i = √-1 because i^2= -1, imaginary numbers produce a negative value when squared. examples of imaginary numbers include -4i , 0.75i, i√2 and 8/3i
complex number
is in the form a+bi, where a and b are real numbers. examples of complex numbers include 3 + 2i , -4 + i ,
Factors
all the numbers that can multiply together to make the number
prime numbers
is a number that is only divisible by itself and 1