Substitute x=5: First, let's try to directly substitute the value of x=5 into the expression to see if it results in an indeterminate form.(12×5−60)/(52−6×5+5)
Calculate Numerator and Denominator: Calculate the numerator and the denominator separately.Numerator: 12×5−60=60−60=0Denominator: 52−6×5+5=25−30+5=0
Identify Indeterminate Form: Since both the numerator and the denominator equal 0, we have an indeterminate form of 0/0. We need to simplify the expression further to find the limit.
Factor Denominator: Factor the quadratic expression in the denominator.x2−6x+5 can be factored into (x−5)(x−1).
Rewrite Limit Expression: Now, rewrite the limit expression with the factored denominator. limx→5(x−5)(x−1)12x−60
Factor Numerator: Notice that the numerator 12x−60 can be factored as well. Factor out the common term 12.(x−5)(x−1)12(x−5)
Cancel Common Term: Now, we can cancel out the common (x−5) term from the numerator and the denominator.x→5lim(x−1)12
Find Limit: Finally, substitute x=5 into the simplified expression to find the limit.(5−1)12=412=3
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