Quote:
Originally Posted by abhishek_mumbai
dissa,
sqrt(x^2)= x
not +x and -x
sqrt(9) = 3
if x^2 = 9
then x can be +3 and -3..
I also got C..
jsloan,
are you sure that C is wrong.. and what is b/n in a.. I do not see b in the question.
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The answer is certainly E
Please, mind that X is defined as a number different from zero.
Then, it might be positive or negative.
Furthermore, the author of the problem must deffine x <>0, because X is placed as a divisor in the expression.
Square Root (x^2)=|x|
Should the problem stated that X is positive then C would have been the answer.
However, this question is testing the concept of absolute value.
Thus E is the Answer
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