Read the below post by on of the members. In GMAT square root of a number is always positive.
Can some one explain this, I seem a bit lost on the explanation.
So am I saying sqrt(9) = only 3.
what is sqrt(x^2) ==>
what is sqrt(x) ==>
On the GMAT, the square root of a number is ALWAYS positive but when you have x^2, x could be positive or negative. In other words,
Can some one explain this, I seem a bit lost on the explanation.
So am I saying sqrt(9) = only 3.
what is sqrt(x^2) ==>
what is sqrt(x) ==>
On the GMAT, the square root of a number is ALWAYS positive but when you have x^2, x could be positive or negative. In other words,
