1. Number Systems Mathematics Class 9 In English Medium Ncert Book Solutions Exercise 1.1
1. Number Systems : Exercise 1.1 Mathematics class 9th:English Medium NCERT Book Solutions
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1. Number Systems
Exercise 1.1
Exercise:1.1
Q1. Is zero a rational number? Can you write it in the form p/q, where p and q are integers and q ≠ 0?
Solution:
Yes, zero is a rational number, because it can be represented on a number line and it can be written in the form of p/q,
Where P = 0 and q ≠ 0;
Q4. State whether the following statements are true or false. Give reasons for your answers.
(I) Every natural number is a whole number.
(ii) Every integer is a whole number.
(iii) Every rational number is a whole number.
Solution:
(I) Every natural number is a whole number. (True)
Reason: Whole numbers contains all natural numbers.
(ii) Every integer is a whole number. (False)
Reason: Integers have also negative number while whole number does not have such negative numbers.
(iii) Every rational number is a whole number. (False)
Reason: Rational numbers have variety of numbers, those numbers can not be represented as whole number.
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Mathematics Chapter List
1. Number Systems
2. Polynomials
3. Coordinate Geometry
4. Linear Equation In Two Variables
5. Introduction To Euclid’s Geometry
6. Lines and Angles
7. Triangles
8. Quadrilaterals
9. Area Parallelograms and Triangles
10. Circles
11. Constructions
12. Herons Formula
13. Surface Areas and Volumes
14. Statistics
15. Probability
