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Molodets [167]
3 years ago
5

Hello, I need help with this problem.

Mathematics
2 answers:
Brilliant_brown [7]3 years ago
7 0

Step-by-step explanation:

put 3.9, 3.99,........ to 4.1 as value of x in ((x-4)÷(x^2-2x-4)) than you will get f(x)

Grace [21]3 years ago
5 0

Answer:

1/5

Step-by-step explanation:

\lim_{x->4}  \frac{x-4}{x^{2}-3x-4 }  \\=  \lim_{x->4}  \frac{x-4}{(x+1)*(x-4) }  \\\\=  \lim_{x->4}  \frac{1}{(x+1) }  \\\\\\

lim x->4   plug in x=4

1/(x+1) = 1/(4+1) = 1/5

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