## Class 10th real no. all the formulas ncert

Question

Class 10th real no. all the formulas ncert

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1 month 2021-10-27T02:48:17+00:00 1 Answer 0 views 0

1 Natural Numbers N = {1,2,3,4,5  >

It is the counting numbers

2 Whole number W= {0,1,2,3,4,5>

It is the counting numbers + zero

3 Integers All whole numbers including Negative number + Positive number  ……-4,-3,-2,-1,0,1,2,3,4,5… so on.

Like whole numbers, integers don’t include fractions or decimals.

4 Positive integers Z+ = 1,2,3,4,5, ……

5 Negative integers Z– = -1,-2,-3,-4,-5, ……

6 Rational Number A number is called rational if it can be expressed in the form p/q where p and q are integers (q> 0).

Ex: P/q, 4/5

7 Irrational Number A number is called rational if it cannot be expressed in the form p/q where p and q are integers (q> 0).

Ex: √2, Pi, … etc

8 Real Numbers A real number is a number that can be found on the number line. Real Numbers are the numbers that we normally use and apply in real-world applications.

Real Numbers include Natural Numbers, Whole Numbers, Integers, Fractions, Rational Numbers and Irrational Numbers