Presentation on theme: "Unit 1-Number Sets Aa-1.1 Define and identify integers, rational, irrational, natural, whole and real numbers."— Presentation transcript:
1 Unit 1-Number SetsAa-1.1 Define and identify integers, rational, irrational, natural, whole and real numbers.
2 1-1 Properties of Real Numbers Real Numbers – are all Rational and Irrational Numbers.There are 5 subsets of real numbersNatural Numbers – are the numbers used for counting.1,2,3,4,…………….Whole Numbers – are the natural numbers and 0.0,1,2,3,4,………
3 Subsets of Real Numbers Integers – are the natural numbers, also called the positive integers, and their opposites, also called the negative integers and zero.…-3,-2,-1,0,1,2,3,4,…….
4 Subsets of Real Numbers Rational Numbers- ⅞,¼,0.5,1.2Can be written as a fraction a / b where both a and b are integers and b is not 0.Rational numbers can also be written as either terminating or recurring decimal fractions.Recurring decimal is a fraction which repeats itself forever.Terminating decimal is a fraction ends after a definite number of digits.
5 Subsets of Real Numbers Irrational Numbers -√2,√3,√⅜,∏,cannot be written in the form of a fraction where the numerator and denominator are both integers, whole numbers.The square root of any prime number is irrational.pi, the ratio between the circumference and diameter of a circle, is irrational.Numbers which can only be written as a never-ending, non-repeating decimal fraction.