A cura di: Administrator
Limite in forma indeterminata $infty – infty$
$lim_{x rightarrow -2} (frac{x+5}{x+2}+frac{4-x}{x^2+2x}) =$$lim_{x rightarrow -2} frac{1}{x+2}cdot [(x+5)+frac{4-x}{x}] =$$lim_{x rightarrow -2} frac{1}{x+2}cdot frac{x^2+5x-x+4}{x} =$$lim_{x rightarrow -2} frac{1}{x+2}cdot frac{(x+2)^2}{x} =$$lim_{x rightarrow -2} frac{x+2}{x} = 0$
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