$\lim_{h\to0}\frac{\sqrt{4+h}-2}{h}$
$\lim_{x\to0}\left(\frac{2^x-3^x}{x}\right)$
$\lim_{x\to1}\left(\frac{\left(\ln\left(x\right)\right)^2}{x-1}\right)$
$\lim_{x\to1}\left(\frac{ln\left(x\right)}{x-1}\right)$
$\lim_{x\to1}\left(\frac{xe^x-e}{x^2-1}\right)$
$\lim_{x\to3}\left(\frac{x^2-9}{x^2-5x+6}\right)$
$\lim_{x\to0}\left(\frac{1-\cos\left(x^2\right)}{x^2}\right)$
Find limits of functions at a specific point by directly plugging the value into the function.
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