Question

Помогите решить пределы!

Answer 1

$1) lim_{x to inft1} frac{3 x^{2} -2}{1- x^{2} }= frac{3-2}{0} =$≈

$2) lim_{x to inft0} frac{x}{ sqrt{x+1}-1 }= lim_{x to inft0} frac{x( sqrt{x+1} +1)}{ (sqrt{x+1}-1) ( sqrt{x+1} +1} = \ lim_{x to inft0} frac{x( sqrt{x+1}+1) }{x} = lim_{x to inft0} ( sqrt{x+1}+1)=2$