Class 9 Exam  >  Class 9 Notes  >  Extra Documents & Tests for Class 9  >  Exercise 1.6 NCERT Solutions: Number System

NCERT Solutions for Class 9 Maths - Exercise 1.6 Number System

1. Find:

(i) 641/2
Solution:
641/2 = (8×8)1/2
= (82)½
= 81 [⸪2×1/2 = 2/2 =1]
= 8

(ii) 321/5
Solution:
321/5 = (25)1/5
= (25)
= 21 [⸪5×1/5 = 1]
= 2

(iii) 1251/3
Solution:
(125)1/3 = (5×5×5)1/3
= (53)
= 51 (3×1/3 = 3/3 = 1)
= 5

2. Find:
(i) 93/2
Solution:
93/2 = (3×3)3/2
= (32)3/2
= 33 [⸪2×3/2 = 3]
=27

(ii) 322/5
Solution:
322/5 = (2×2×2×2×2)2/5
= (25)2⁄5
= 22 [⸪5×2/5= 2]
= 4

(iii)163/4
Solution:
163/4 = (2×2×2×2)3/4
= (24)3⁄4
= 23 [⸪4×3/4 = 3]
= 8

(iv) 125-1/3
Solution:
125-1/3 = (5×5×5)-1/3
= (53)-1⁄3
= 5-1 [⸪3×-1/3 = -1]
= 1/5

3. Simplify:
(i) 22/3×21/5
Solution:
22/3×21/5 = 2(2/3)+(1/5) [⸪Since, am×an=am+n____ Laws of exponents]
= 213/15 [⸪2/3 + 1/5 = (2×5+3×1)/(3×5) = 13/15]

(ii) (1/33)7
Solution:
(1/33)= (3-3)7 [⸪Since,(am)= am x n____ Laws of exponents]
= 3-21

(iii) 111/2/111/4
Solution:
111/2/111/4 = 11(1/2)-(1/4)
= 111/4 [⸪(1/2) – (1/4) = (1×4-2×1)/(2×4) = 4-2)/8 = 2/8 = ¼ ]

(iv) 71/2×81/2
Solution:
71/2×81/2 = (7×8)1/2 [⸪Since, (am×b= (a×b)m ____ Laws of exponents]
= 561/2

The document NCERT Solutions for Class 9 Maths - Exercise 1.6 Number System is a part of the Class 9 Course Extra Documents & Tests for Class 9.
All you need of Class 9 at this link: Class 9
1 videos|228 docs|21 tests

Top Courses for Class 9

FAQs on NCERT Solutions for Class 9 Maths - Exercise 1.6 Number System

1. How can I access the NCERT Solutions for Exercise 1.6 on Number System for Class 9?
Ans. You can access the NCERT Solutions for Exercise 1.6 on Number System for Class 9 by referring to the official NCERT website. They provide free access to the solutions for all the exercises in the NCERT textbook.
2. Are the NCERT Solutions for Exercise 1.6 on Number System for Class 9 available in multiple languages?
Ans. Yes, the NCERT Solutions for Exercise 1.6 on Number System for Class 9 are available in multiple languages. You can find them in languages such as English, Hindi, Urdu, and more, depending on the language options provided by NCERT.
3. How can the NCERT Solutions for Exercise 1.6 on Number System for Class 9 help me prepare for the exam?
Ans. The NCERT Solutions for Exercise 1.6 on Number System for Class 9 can help you prepare for the exam by providing step-by-step explanations and solutions to the problems. They will help you understand the concepts better and practice solving similar problems, which will enhance your problem-solving skills and boost your confidence for the exam.
4. Can I rely solely on the NCERT Solutions for Exercise 1.6 on Number System for Class 9 for my exam preparation?
Ans. While the NCERT Solutions for Exercise 1.6 on Number System for Class 9 are a valuable resource for exam preparation, it is recommended to refer to other study materials as well. The solutions should be used as a supplement to your understanding and practice. Consulting additional reference books, solving sample papers, and seeking guidance from teachers or tutors will provide a more comprehensive preparation for the exam.
5. Are the NCERT Solutions for Exercise 1.6 on Number System for Class 9 suitable for self-study?
Ans. Yes, the NCERT Solutions for Exercise 1.6 on Number System for Class 9 are suitable for self-study. They are designed to be easily understandable and provide step-by-step solutions. However, if you encounter any difficulties or have further questions, it is advisable to seek guidance from a teacher or an experienced person to ensure a thorough understanding of the concepts.
1 videos|228 docs|21 tests
Download as PDF
Explore Courses for Class 9 exam

Top Courses for Class 9

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

NCERT Solutions for Class 9 Maths - Exercise 1.6 Number System

,

practice quizzes

,

Summary

,

Previous Year Questions with Solutions

,

study material

,

video lectures

,

Semester Notes

,

NCERT Solutions for Class 9 Maths - Exercise 1.6 Number System

,

Viva Questions

,

NCERT Solutions for Class 9 Maths - Exercise 1.6 Number System

,

Important questions

,

Sample Paper

,

Extra Questions

,

pdf

,

Objective type Questions

,

Free

,

shortcuts and tricks

,

mock tests for examination

,

Exam

,

MCQs

,

past year papers

,

ppt

;