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Sq. Root of x^2

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Sq. Root of x^2

by euro » Mon Nov 01, 2010 9:09 am
If x is not equal to zero, then
[Sq.Root (x^2)]/ x =

(A) -1

(B) 0

(C) 1

(D) x

(E) |x|/x

OA is [spoiler](E)[/spoiler]

Not able to distinguish between choices [spoiler] (C) & (E) [/spoiler]. Both seem correct.
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by kmittal82 » Mon Nov 01, 2010 9:13 am
Sq Root(x^2) = +x or -x

Thus, [Sq.Root (x^2)]/ x = +1 or -1

|x|/x matches this.
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