8.计算下列极限:-|||-(5) lim _(xarrow infty )((dfrac {x-1)(x+1))}^2x.
5..根据函数极限的定义证明lim _(xarrow 3)(3x-1)=8.5..根据函数极限的定义证明.
8.计算下列极限:(1) lim _(xarrow 0)dfrac (sin 4x)(sqrt {x+1)-1}(1) lim _(xarrow 0)dfrac
2.计算函数极限 lim _
8.求下列极限:-|||-(5)lim _(xarrow 0)((dfrac {{a)^x+(b)^x+(c)^x}(3))}^dfrac (1{x)}cdot
8.洛必达法则适用于∞0∞型极限A. 对B. 错
根据函数极限的定义证明: (1) lim _(xarrow 3)(3x-1)=8;(1) lim _(xarrow 3)(3x-1)=8; (1) lim
5、单选 极限 lim _
计算下列极限:-|||-(1) lim _(xarrow 0)(x)^2sin dfrac (1)(x);-|||-(2)lim arctan x