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Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev

Mathematics (Maths) Class 9

Class 9 : Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev

The document Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev is a part of the Class 9 Course Mathematics (Maths) Class 9.
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Q.1. Visualise 3.765 on the number line, using successive magnification.
Ans. 3.765 lies between 3 and 4.
Let us divide the interval (3, 4) into 10 equal parts. 

Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev

Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev

Since, 3.765 lies between 3.7 and 3.8. We again magnify the interval [3.7, 3.8] by dividing it further into 10 parts and concentrate the distance between 3.76 and 3.77.
The number 3.765 lies between 3.76 and 3.77. Therefore we further magnify the interval [3.76, 3.77] into 10 equal parts.
Now, the point corresponding to 3.765 is clearly located, as shown in Fig. (iii) above.

Q.2. Visualise Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev on the number line, up to 4 decimal places.
Ans. Note: We can magnify an interval endlessly using successive magnification.
To visualize Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev or 4.2626… on the number line up to 4 decimal places, we use the following steps.
I. The number 4.2626… lies between 4 and 5. Divide the interval [4, 5] in 10 smaller parts:

Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev

II. Obviously, the number 4.2626... lies between 4.2 and 4.3. We magnify the interval [4.2, 4.3]:

Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev

III. Next, we magnify the interval [4.26, 4.27]:

Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev

IV. Finally magnify the interval [4.262, 4.263]:

Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev

In Fig. (iv), we can easily observe the number 4.2626… or Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev.

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Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev notes for Class 9 is made by best teachers who have written some of the best books of Class 9. It has gotten 1747 views and also has 4.9 rating. You can download Free Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev pdf from EduRev by using search above. You can also find Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev ppt and other Class 9 slides as well. If you want Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev Tests & Videos, you can search for the same too. Class 9 Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev Summary and Exercise are very important for perfect preparation. You can see some Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev sample questions with examples at the bottom of this page. Complete Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev chapter (including extra questions, long questions, short questions, mcq) can be found on EduRev, you can check out Class 9 lecture & lessons summary in the same course for Class 9 Syllabus. EduRev is like a wikipedia just for education and the Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev images and diagram are even better than Byjus! Do check out the sample questions of Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev for Class 9, the answers and examples explain the meaning of chapter in the best manner. This is your solution of Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev search giving you solved answers for the same. To Study Ex 1.4 NCERT Solutions - Number System Class 9 Notes | EduRev for Class 9 this is your one stop solution.

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