(4) \( \lim _{x \rightarrow 1}^{\text {Resuefue por }}\left(\frac{x^{2}-2 x+1}{x-1}\right)= \)

Calculate or simplify the expression \( \lim_{x\rightarrow 1} \left(\frac{x^{2}-2x+1}{x-1}\right) \). Evaluate the limit by following steps: - step0: Evaluate using transformations: \(\lim _{x\rightarrow 1}\left(\frac{x^{2}-2x+1}{x-1}\right)\) - step1: Reduce the fraction: \(\lim _{x\rightarrow 1}\left(x-1\right)\) - step2: Rewrite the expression: \(\lim _{x\rightarrow 1}\left(x\right)+\lim _{x\rightarrow 1}\left(-1\right)\) - step3: Calculate: \(1-1\) - step4: Calculate: \(0\) La limitante de la expresión \( \frac{x^{2}-2x+1}{x-1} \) cuando \( x \) se acerca a 1 es 0.