NCERT Solutions for Class 8 Maths Chapter 10 Exponents and Powers 10.1

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 NCERT Solutions for Class 8 Maths Chapter 10 


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Class 8 Maths Exponents and Powers 10.1

Class 8 Maths Exponents and Powers 10.2




 Exponents and Powers Exercise 10.1

Ex 10.1 Class 8 Maths Question 1.
Evaluate:
(i) 3-2
(ii) (-4)-2
(iii) (12)-5
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q1

Ex 10.1 Class 8 Maths Question 2.
Simplify and express the result in power notation with a positive exponent.
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q2
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q2.1

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q2.2

Ex 10.1 Class 8 Maths Question 3.
Find the value of
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q3
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q3.1

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q3.2

Ex 10.1 Class 8 Maths Question 4.
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q4
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q4.1

Ex 10.1 Class 8 Maths Question 5.
Find the value of m for which 5m ÷ 5-3 = 55.
Solution:
5m ÷ 5-3 = 55
⇒ 5m-(-3) = 55 [∵ am ÷ an = am-n]
⇒ 5m+3 = 55
Comparing the powers of equal bases, we have
m + 3 = 5
m = 5 – 3 = 2, i.e., m = 2

Ex 10.1 Class 8 Maths Question 6.
Evaluate:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q6
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q6.1

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q6.2

Ex 10.1 Class 8 Maths Question 7.
Simplify:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q7
Solution:
NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 Q7.1

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q-1

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q-2

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q-3

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q-4

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q-5

NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers Ex 12.1 q-6


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