Problem

$f(x)=\frac{x-1}{x^{2}-1}$

Answer

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Answer

Final Answer: \(\boxed{f(x) = \frac{1}{x + 1}}\)

Steps

Step 1 :Given function: \(f(x)=\frac{x-1}{x^{2}-1}\)

Step 2 :Factor the denominator as a difference of squares: \(x^{2}-1 = (x-1)(x+1)\)

Step 3 :Simplify the function by canceling out the common factors in the numerator and denominator: \(f(x)=\frac{x-1}{(x-1)(x+1)}\)

Step 4 :Final Answer: \(\boxed{f(x) = \frac{1}{x + 1}}\)

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