Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
sana A
sana A asked in Science & MathematicsMathematics · 1 decade ago

Assume that m & n are positive integers and that m≤n. Prove that if m2=n2then m=n using contrapositive method

2 Answers

Relevance
  • Anonymous
    1 decade ago
    Favorite Answer

    By m2 do you mean m squared? Assuming this is what you mean then:

    If m≠n then n>m and so n²>m² and so n²≠m²

    So by the contrapositive if n²=m² then m=n.

  • ghijk3
    Lv 4
    1 decade ago

    Assume m is not equal to n

    then multiply by 2 [or raise]

    and you get that 2m [or m^2] is not equal to 2n [or n^2]

    Is that what you want?

Still have questions? Get your answers by asking now.