your answer is correct.
for the restriction, the denominator cannot be zero, so x≠1
also the inside of the square root cannot be negative,
this will happen when -1 ≤ x ≤ +1
so the domain is x ≤ -1 OR x > 1
as x gets +large, the expression approaches 1
as x gets -large, the expression approaches -1
range: y >1 OR y < -1
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