Evaluate this ------→
lim x → 1 (x²-2x+1)/x²-1
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Step-by-step explanation:
lim(x -> 1) (x² - 2x + 1) /(x² - 1)
Substituting x = 1
(1² - 2*1 + 1)/(1² - 1) = 0/0
Use LHospital Rule
Differentiating the numerator and denominator wrt x,
Numerator becomes 2x - 2
Denominator becomes 2x
Now,
lim( x -> 1) (2x - 2)/(2x)
Substituting x = 1
(2*1 - 2)/(2*1) = (2 - 2)/2 =0/2= 0
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