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NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 are part of NCERT Solutions for Class 8 Maths. Here we have given NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1.

  • Exponents and Powers Class 8 Ex 12.2
Board CBSE
Textbook NCERT
Class Class 8
Subject Maths
Chapter Chapter 12
Chapter Name Exponents and Powers
Exercise Ex 12.1
Number of Questions Solved 7
Category NCERT Solutions

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1

Ex 12.1 Class 8 Maths Question 1.
Evaluate :
(i) 3-2
(ii) (-4)-2
(iii) \(\left( \frac { 1 }{ 2 } \right) ^{ -5 }\)
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 1

Ex 12.1 Class 8 Maths Question 2.
Simplify and express the result in power notation with positive exponent:
(i) (-4)-5 ÷ (-4)-5
(ii) \(\left( \frac { 1 }{ { 2 }^{ 3 } } \right) ^{ 2 }\)
(iii) (-3)-4 x \(\left( \frac { 5 }{ 3 } \right) ^{ 4 }\)
(iv) (3-7 ÷ 3-10) x 3-5
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 2
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 3

Ex 12.1 Class 8 Maths Question 3.
Find the value of :
(i) (30 + 4-1) x 22
(ii) (2-1 x 4-1) ÷ 2-2
(iii) \(\left( \frac { 1 }{ 2 } \right) ^{ -2 }+\left( \frac { 1 }{ 3 } \right) ^{ -2 }+\left( \frac { 1 }{ 4 } \right) ^{ -2 }\)
(iv) (3-1 4-1 + 5-1)0
(v) \(\left\{ \left( \frac { -2 }{ 3 } \right) ^{ -2 } \right\} ^{ 2 }\)
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 4

Ex 12.1 Class 8 Maths Question 4.
Evaluate
(i) \(\frac { { 8 }^{ -1 }\times { 5 }^{ 3 } }{ { 2 }^{ -4 } } \)
(ii) (5-1 x 2-1) x 6-1
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 5

Ex 12.1 Class 8 Maths Question 5.
Find the value of m for which 5m + 5-3 = 55.
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 6

Ex 12.1 Class 8 Maths Question 6.
Evaluate
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 7
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 8

Ex 12.1 Class 8 Maths Question 7.
Simplify :
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 9
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 10
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers 11

We hope the NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 help you. If you have any query regarding NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1, drop a comment below and we will get back to you at the earliest.

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