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Find the value of m for which 5ᵐ÷5⁻⁻³=5⁵

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NCERT Solutions for Class 8 Mathematics Chapter 12
Important NCERT Questions
Exponents and Powers Chapter 8 Exercise 12.1
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 5

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1 Answer

  1. 5ᵐ÷5⁻³=5⁵
    ⇒ 5ᵐ⁻(⁻³)= 5⁵ [∵aᵐ÷aₙ=aᵐ⁻ᵐ]
    ⇒ 5ᵐ⁺³ =5⁵
    Comparing exponents both sides, we get
    ⇒ m+3=5
    ⇒ m=5-3
    ⇒ m=2

    Class 8 Maths Chapter 11 Exercise 12.1 Solution in Video

    for more answers vist to:
    https://www.tiwariacademy.com/ncert-solutions/class-8/maths/chapter-12/

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