MATH 112 Lecture Notes - Lecture 1: Additive Inverse, Rational Number, Irrational Number
Document Summary
Numbers: natural: this set comprises of the counting numbers, ex: 1, 2 , 3, 4 . It results when an integer is divided by a non-zero integer: ex:2. Any number divided by zero is undefined. This includes the rational and irrational numbers: ex: 7, - 4. 2 is an example of a natural number b. 4 is an example of a rational number c. 0 is an example of an integer but not a natural number d. 5 is an example of an integer that is also a natural number e. 1.
