lim_(x to 0) (1 - ax)^(2)/(x) = e^3，则a=

已知极限lim_(x to infty) (ax+3)/(x-1) = 2，则(）A. a=0B. a=2C. a=1D. a 为任意常数

设lim_(x to 0) (sin 2x + xf(x))/(x^3) = 1，则lim_(x to 0) (2cos x + f(x))/(x^2) = (

若lim _(xarrow 0)dfrac ({e)^2x-1}(tan ax)=-3-|||-__，则lim _(xarrow 0)dfrac ({e)^2x

1 设lim_(xto0)(1+x+(f(x))/(x))^(1)/(x)=e^3,则lim_(xto0)(1+(f(x))/(x))^(1)/(x)=____

8.设lim_(x to 0) (sin 2x + xf(x))/(x^3) = 1,则lim_(x to 0) (2cos x + f(x))/(x^2) =

若 lim_(x to 0) (f(2x))/(x) = 2，则 lim_(x to infty) xf((1)/(2x)) = ( )A. $\frac{1}

11.已知lim_(x to 0) (ln(1+frac(f(x))/(x)))(2^x-1)=3，则lim_(x to 0) (f(x))/(sqrt(1+x

lim_(x to 0) ((1+x)^frac(2)/(x) - e^2)(x) $\lim_{x \to 0} \frac{(1+x)^{\frac{2}{

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

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