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I remember reading in one of the posts that Whenever we take [#permalink]
01 Sep 2004, 05:26
I remember reading in one of the posts that
Whenever we take the sqrt ,we consider only the +ve values.
Eg. sqrt (9) = +3 only.
And whenever we have x^2=9 , this implies that x = +/- 3.
ian777 also gave an OG question that deals with this.
My question is -
I remember reading that the square root of a square of a negative number is the negative number itself.
Eg. sqrt ( (-3)^2 ) = -3, if its explicitly mentioned within the srqt that we have a (-3)^2. ----- a
and sqrt ( (-3)^2 ) = 3 (this is fine).