MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1

MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1

MP Board Class 8 Maths Chapter 12 Question 1.
Evaluate
(i) 3-2
(ii) (-4)-2
(iii) \(\)
Solution:
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 1

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Practice Set 12.1 Class 8 Question 2.
Simplify and express the result in power notation with positive exponent.
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 2
Solution:
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 50
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 3
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 4

MP Board Solutions

Exponents And Powers Class 8 Question 3.
Find the value of
(i) (30 + 4-1) × 22
(ii) (2-1 × 4-1) ÷ 2-2
(iii) \(\left(\frac{1}{2}\right)^{-2}+\left(\frac{1}{3}\right)^{-2}+\left(\frac{1}{4}\right)^{-2}\)
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 5
Solution:
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 6
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 7

MP Board Class 8 English Chapter 12 Question 4.
Evaluate
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 9
Solution:
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 10
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 11

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MP Board Class 8 Maths Chapter 12 Factorisation Question 5.
Find the value of m for which 5m ÷ 5-3 = 55.
Solution:
We have, 5m ÷ 5-3 = 55
⇒ 5m-(-3) = 55 [∵ am + an =am + n]
⇒ 5m + 3 = 55
⇒ m + 3 = 5 [∵ am = an ⇒ m = n]
⇒ m = 5 – 3 = 2

MP Board Solutions

Class 8 Chapter 12 Exercise 12.1 Question 6.
Evaluate
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 12
Solution:
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 13

Chapter 12 Maths Class 8 Hindi Medium Solutions Question 7.
Simplify.
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 14
Solution:
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 15
MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1 16

MP Board Class 8th Maths Solutions

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