ATP Education

ATEducation.com Logo

The Secure way of Learning

   Welcome! Guest

LogIn    Register       

 

Sponser's Link
Sponser's Link

Sponser's Link

Join Us On Facebook
CBSE And NCERT Solutions:

NCERT Solutions for Class 9 Mathematics english Medium 1. Number Systems

Select Your Subject: CBSE English Medium

 

NCERT SolutionsClass 9th Mathematics Chapter 1. Number Systems:
Page 2 of 5

1. Number Systems

 

Exercise 1.2

 

Exercise 1.2 

 

Q1. State whether the following statements are true or false. Justify your answers.

(i) Every irrational number is a real number.
(ii) Every point on the number line is of the form m , where m is a natural number.
(iii) Every real number is an irrational number.

Solution: 

(i) Every irrational number is a real number.  (True)

Justification: Real numbers are collections of both rational and irrational numbers. 

(ii) Every point on the number line is of the form √m , where m is a natural number.   (False

Justification: Number line contains both negative and positive integers where m is a natural number, so there is no possibility to express negative number within square root. 

(iii) Every real number is an irrational number.  (False

Justification: Real numbers are collections of both rational and irrational numbers not only irrational number. 

Q2. Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number.

Solution: No, the square roots of all positive integers are not only irrational but also they are rational. 

Examples: 

​√1 = 1        rational 

√2 = √2      irrational 

√3 = √3      rational 

√4 = 2        rational 

√9 = 3        rational 

Q3. Show how 5 can be represented on the number line.

Solution: 

 

 

 

 

www.atpeducation.com

www.atpeducation.com

 

 

Advertisement
Page 2 of 5
Download Our Android App
Get it on Google Play
Feed Back

Roshan Class X says:

"6"

Shadab Khan Class X says:

"make fast all science pages geography "

Shivam Bajpai All Class says:

"ये पेज under construction क्युं है .plz fix this prob..."

Krishan Class X says:

"this very good website i really appreciate which provide no cost education to all medium classes"

Vimal Class XI says:

"Not able to find the content....as instructed."

Kamini Class X says:

"every chepter is imcomplete....this side is not useful"

Ashok Swami All Class says:

"10th science ka Lesson-8 ka page no.5 kab take under construction rahega please improve it."

Rishabh Gupta Class XI says:

"how can i understand difference between permutation and combination word problem"

Rishabh Gupta Class XI says:

"i want to learn parts of speech"

KASHIF ALI Class VIII says:

"Please update all the syllabus of class 8"

ATP Education

 

 

Follow us On Google+
Join Us On Facebook
Sponser's Link
Sponser's Link