设f(0)=0,且f'(0)=2,求limx趋向于0 f(x)/sin6x.

设f(0)=0,且f'(0)=2,求limx趋向于0 f(x)/sin6x. 设f(0)=0 且f'(0)存在 则limx趋向与0f(x)/x= 设f(x)连续可导,f(0)=0,f'(0)=3,求limx趋向于0 xf(x)/(1-cosx). 已知{limx趋近0 [（sin6x）+xf(x)]/x^3}=0 求limx趋近0 [6+f(x)]/x^2=?答案是 已知limx趋近0 [6+f(x)]/x^2=36,求limx趋近0 [（sin6x）+xf(x)]/x^3=? 设f(0)=0且f'(0)=2,求limx→0f(x)/sin2x 设f(x)=|x|/x,求limx→0-f(x)及limx→0+f(x),并判断limx→0f(x)是否存在 设函数f(x)在x=0点连续 且满足limx->0(sinx/x^2+f(x)/x)=2求f'(0) 设f(0)=0,f'(0)=2,求limf（x）/sin 2x ,x 趋向于0 设f'(x0) 存在,求lim[ f(x0-x)-f(x0)]/x,x趋向于0 设f(x)在x=0处连续,且limx->0f(x)-1/x=a(a为常数),求f(0),f'(0) 已知函数值f(0)=0,若极限limX趋向于0f(x/2)/x=2,则导数值f‘(0)