Question

Hello, I need help with this problem.

Answer 1

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)

Answer 2

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