RD Chapter 1- Number Systems Ex-1.1 |
RD Chapter 1- Number Systems Ex-1.2 |
RD Chapter 1- Number Systems Ex-1.3 |
RD Chapter 1- Number Systems Ex-1.4 |
RD Chapter 1- Number Systems Ex-1.6 |

Complete the following sentences:

(i) Every point on the number line corresponds to a … number which many be either … or

(ii) The decimal form of an irrational number is neither … nor …

(iii) The decimal representation of a rational number is either … or …

(iv) Every real number is either … number or … number.

**Answer
1** :

(i) Every point on the number line corresponds to a real number which many be either rational or irrational.

(ii) The decimal form of an irrational number is neither terminating nor repeating.

(iii) The decimal representation of a rational number is either terminating or non¬terminating, recurring.

(iv) Every real number is either rational number or an irrational number.

Find whether the following statements are true or false:

(i) Every real number is either rational or irrational.

(ii) π is an irrational number.

(iii) Irrational numbers cannot be represented by points on the number line.

**Answer
2** :

(i) True. (Value of π = 3.14)

(ii) False : we can represent irrational number also.

**Answer
3** :

Find the equivalent values of √6, √7, √8

√6 = 2.449

√7 = 2.645

√8 = 2.828

We can see that, all the given numbers lie between 2 and 3.

Draw on number line:

**Answer
4** :

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