Question

Find the Range f(x)=(x^2-1)/(x-1)

Answer 1

Answer: R -{2}

Step-by-step explanation:

x ≠ 1 because x-1 is denominator

now,  f(x) = (x^2-1)/(x-1) = (x+1)(x-1)/(x-1) = x+1

now x can assume all values except 1, so x+1 can assume all values except 1+1=2

so range = R -{2}

Answer 2

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