MATH 117 Lecture Notes - Lecture 1: Cartesian Coordinate System, Rational Number, Irrational Number

• School: LUC
• Department: Mathematical Sciences
• Course: MATH 117
• Professor: Cristina Popovici

Document Summary

Ex: is not a rational number ( = (cid:1007). (cid:1005)(cid:1008)(cid:1009) . (cid:895) Ex: (cid:884) is not a rational number: = set of all real number. (rational and irrational, the numbers that are not rational are called irrational number. a b (a,b) = {x/ a< x} [a, ) = {x/ x (cid:3410)} (- ,a) = {x/ x