Which of the Statements is/are Correct?

Consider the following in respect of the equation y=(√(x-1)²)/(x-1)
1.y=1 if x>1
2.y=-1 if x<1
3. Y exists for all values of x
Which of the above statements is/are correct?
(a) 1 only                 (b) 2 only                (c) 1 and 2 only              (d) 1, 2 and 3

Anurag Mishra Professor Asked on 7th November 2015 in Maths.
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    Answer:  (c) 1 and 2 only 

    Anurag Mishra Professor Answered on 19th May 2016.
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