求极限 lim_(x to infty) ( (2x+3)/(2x+1) )^x-1 求极限 $\lim_{x \to \infty} \left( \frac
【141】求极限lim_(xtoinfty)(5x^2-3)/(2x+1)sin(2)/(x).【141】求极限$\lim_{x\to\infty}\frac{
(3) lim _(xarrow infty )((dfrac {2x+3)(2x+1))}^x+1
(3) lim _(xarrow infty )((dfrac {2x+3)(2x+1))}^x+1;
(3) lim _(xarrow infty )((dfrac {2x+3)(2x+1))}^x+1;
(2) lim _(xarrow infty )((dfrac {2x+3)(2x+1))}^x+1;
(5) lim _(xarrow infty )((dfrac {2x+3)(2x+1))}^x+1;
②lim_(xto+infty)(1+x)^(1)/(x).③lim_(xtoinfty)(1+(1)/(sqrt(1+x^2)))^x. ④lim_(xto
(2)lim_(xtoinfty)(x^2+cos^2x-1)/((x+sin x)^2)(2)$\lim_{x\to\infty}\frac{x^{2}+\c
3.计算下列极限(1) lim_(x→2)(-2) ;(2) lim_(x→1)(x^3-x^2+x-1) ;21(3)lim_(x→2)(x^2-16)/(x