Sorry the lim Delta x -> 2 was suppose to read just lim x -> 2
I don't believe your technique still holds in that case?
Actually, because there is no "$\displaystyle \Delta x$" in the function, Rapha did that already assuming that you mean $\displaystyle \lim_{x\rightarrow 2} \frac{2- x}{x^2- 4}$
Actually, because there is no "$\displaystyle \Delta x$" in the function, Rapha did that already assuming that you mean $\displaystyle \lim_{x\rightarrow 2} \frac{2- x}{x^2- 4}$
Sorry - I now see where my logic was flawed. Thank you both.