Question

If f is a function such that lim f(x)/(x-1) = 4 when x goes to 1, so, lim f(x)/(x^2-1) when x goes to 1 is equals to: 0, 1, 2, 3 or 4?
I don't understand how to iniciate this exercise =P.

Answer 1

2

Answer 2

really? But, how you do?

Answer 3

we separate that f(x)/x-1 *1/x +1...Then from the property of limit we put limit for each part and it becomes 4*1/(1+1)

Answer 4

aah, It's true! thanks!