View Poll Results: SQUARE ROOT OF 4 ?

Voters
7. You may not vote on this poll
  • 2

    2 28.57%
  • + OR - 2

    3 42.86%
  • DEPENDS ON SITUATION

    2 28.57%

  1. #1
    ajay23888
    Join Date
    Nov 2011
    Posts
    1

    Can you answer a Maths question listed below with explanation?

    SQUARE ROOT OF 4 ?
    a. 2
    b.+ OR - 2
    c. IT DEPENDS ON SITUATION




  2. #2
    Rahul k
    Join Date
    May 2011
    Location
    Uttranchal,Rishikesh
    Posts
    1,943

    Re: Can you answer a Maths question listed below with explanation?

    Nice Question Asked !!

    But According to me, It depends whether you define "square root of 4" as "the positive number whose square is 4" or "any number whose square is 4".

    I think that in the question "Find the square root of 4", the first definition is implicit, otherwise you should have been asked "Find all square roots of 4".

    Calculation : You can Calculate the Square Roots by Both the Ways :

    √ 4 = √ (2 * 2) = 2

    OR

    √ (-2 * -2) = 2

    Then the answer is 2. The surd symbol, applied to a non-negative real number x, always returns the non-negative real number y that satisfies y square = x.




  3. #3
    snehak
    Join Date
    Jun 2011
    Posts
    551

    Re: Can you answer a Maths question listed below with explanation?

    Nice Question Asked !!

    But According to me, It depends whether you define "square root of 4" as "the positive number whose square is 4" or "any number whose square is 4".

    I think that in the question "Find the square root of 4", the first definition is implicit, otherwise you should have been asked "Find all square roots of 4".

    Calculation : You can Calculate the Square Roots by Both the Ways :

    √ 4 = √ (2 * 2) = 2

    OR

    √ (-2 * -2) = 2

    Then the answer is 2. The surd symbol, applied to a non-negative real number x, always returns the non-negative real number y that satisfies y square = x.

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