because we do not know whether denominator is positive or negative. However, we know for sure that numerator is positive (its a square root) - so answer could be +ve 1 or -ve 1 depends on the actual sign of x.
Therefore, the above explanation is explained as the answer. |x|/x
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California4jx
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niraj_a
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sure
here's a rule for you: sqrt (x^2) can always be written as |x^2|. there's nothing else this question is asking.
if you did not know this rule, you could tested numbers and seen which answer choice matched i.e. 1, -1, 0, 2, -2
here's a rule for you: sqrt (x^2) can always be written as |x^2|. there's nothing else this question is asking.
if you did not know this rule, you could tested numbers and seen which answer choice matched i.e. 1, -1, 0, 2, -2
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vittalgmat
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niraj_a wrote:sure
here's a rule for you: sqrt (x^2) can always be written as |x^2|. <----- typo here. it should be |x| there's nothing else this question is asking.
if you did not know this rule, you could tested numbers and seen which answer choice matched i.e. 1, -1, 0, 2, -2
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Well, that option is given - it's answer choice C, since |1| is the same thing as 1.hgupta0 wrote:Wouldn't the above be |1| (if that option was given?)
I imagine what you're getting at is that the expression has an absolute value of 1, which is true, but that means that it's either equal to -1 or to 1, and not to |1|.
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