limx趋近于64x/(x-6)2

limx趋近于0sin3x/2xlimx趋近于0sin3x/2xlimx趋近于0sin3x/2xlim(x→0)sin3x/2x=lim(x→0)(sin3x/3x)*(3/2)=lim(3x→0)(

证明limx趋近于0,y趋近于0x^3y/x^6+y^2不存在证明limx趋近于0,y趋近于0x^3y/x^6+y^2不存在证明limx趋近于0,y趋近于0x^3y/x^6+y^2不存在令y=kx^3

limx^2/2-xx趋近于2limx^2/2-xx趋近于2limx^2/2-xx趋近于2分子是4,分母是0,因此极限是∞原式=lim(x-

limx趋近于01-gen1+x^2/x^2limx趋近于01-gen1+x^2/x^2limx趋近于01-gen1+x^2/x^2原式=[1+√(1+x^2)][1-√(1+x^2)]/x^2[1+

limx趋近于0(sinx/x)^(1/x^2)limx趋近于0(sinx/x)^(1/x^2)limx趋近于0(sinx/x)^(1/x^2)若看不清楚,可点击放大.

limx趋近于0(e^2x)-1/xlimx趋近于0(e^2x)-1/x limx趋近于0(e^2x)-1/x 

limx趋近于3,x/(x^2-9)求极限limx趋近于3,x/(x^2-9)求极限limx趋近于3,x/(x^2-9)求极限极限不存在要极限存在必须左右极限相等limx->3-x/[(x-3)(x+

limx趋近于1sin(1-x^2)/1-xlimx趋近于1sin(1-x^2)/1-xlimx趋近于1sin(1-x^2)/1-x=limx趋近于1cos(1-x^2)*(-2x)/(-1)=cos

limx趋近于派(x-派)tanx/2是limx趋近于派(x-派)tan(x/2)limx趋近于派(x-派)tanx/2是limx趋近于派(x-派)tan(x/2)limx趋近于派(x-派)tanx/

limx趋近于无穷x^2(π/2-arctan3x^2)limx趋近于无穷x^2(π/2-arctan3x^2)limx趋近于无穷x^2(π/2-arctan3x^2)设π/2-arctan3x^2=

证明limx^2-6x+5/x-5=-4,x趋近于-3证明limx^2-6x+5/x-5=-4,x趋近于-3证明limx^2-6x+5/x-5=-4,x趋近于-3lim{(x²-6x+5)/

limx趋近于派(x-派)tanx/2的极限limx趋近于派(x-派)tanx/2的极限limx趋近于派(x-派)tanx/2的极限

limx趋近于0(e^2x-1)/sin4xlimx趋近于0(e^2x-1)/sin4xlimx趋近于0(e^2x-1)/sin4xlim(x->0)(e^2x-1)/sin4x(0/0)=lim(x

limx趋近于1,(1-x^2)/sinxlimx趋近于1,(1-x^2)/sinxlimx趋近于1,(1-x^2)/sinxlim(1-x^2)/sinx=0/sin1=0.lim(1-x^2)/s

limx趋近于无穷(2-1/x+1/xx)limx趋近于无穷(2-1/x+1/xx)limx趋近于无穷(2-1/x+1/xx)

limx趋近于0时2arcsinx/3xlimx趋近于0时2arcsinx/3xlimx趋近于0时2arcsinx/3x

limx趋近于0,2arcsinx/3x=limx趋近于0,2arcsinx/3x=limx趋近于0,2arcsinx/3x=arcsinx~x原式=lim(2x/3x)=2/3

limx趋近于1x^2-1/inxlimx趋近于1x^2-1/inxlimx趋近于1x^2-1/inx答：lim(x→1)(x^2-1)/lnx=lim(x→1)(x-1)(x+1)/lnx=lim(

limx趋近于0tan2x分之xlimx趋近于0tan2x分之xlimx趋近于0tan2x分之x解利用等价无穷小x→0tan2x→2xlimx趋近于0(x/tan2x)=limx趋近于0(x/2x)=

limx趋近于0lnsinx/xlimx趋近于0lnsinx/xlimx趋近于0lnsinx/xlim(sinx/x)=1y=lnu在u=1处连续limln(sinx/x)=ln1=0