lim(x→0)1-cos2x/2x*sinx

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lim(x→0)1-cos2x/2x*sinx
求lim(1-cos2x)/x^2极限,x→0

求lim(1-cos2x)/x^2极限,x→0求lim(1-cos2x)/x^2极限,x→0求lim(1-cos2x)/x^2极限,x→0利用等价无穷小x→0,则2x→0,所以1-cos2x等价于(2x)^2/2=2x^2直接替换原式=li

lim(x→0)(1-cos2x)/xsinx

lim(x→0)(1-cos2x)/xsinxlim(x→0)(1-cos2x)/xsinxlim(x→0)(1-cos2x)/xsinx1-cos2x=2sin²x(1-cos2x)/xsinx=2sinx/xlim(x→0)=

lim(x→0)(1-cos2x)/(x*sin2x) lim(x→0)(xcot2x) lim(x

lim(x→0)(1-cos2x)/(x*sin2x)lim(x→0)(xcot2x)lim(x→无穷)(1+(1/2x))^xlim(x→0)(1-cos2x)/(x*sin2x)lim(x→0)(xcot2x)lim(x→无穷)(1+(

y=lim (cos2x)^(1+cot^2x)y=lim(x→0) (cos2x)^(1+cot^

y=lim(cos2x)^(1+cot^2x)y=lim(x→0)(cos2x)^(1+cot^2x)=lim(x→0)e^ln(1-2xin^2x)/xin^2x这部用的ln的什么公式,y=lim(cos2x)^(1+cot^2x)y=l

lim((x→0)(1-cos2x)/(x*sinx)

lim((x→0)(1-cos2x)/(x*sinx)lim((x→0)(1-cos2x)/(x*sinx)lim((x→0)(1-cos2x)/(x*sinx)lim((x→0)(1-cos2x)/(x*sinx)=lim((x→0)(1

lim x→0 sin2x/sin5xlim x→0 (1-cos2x)/x²lim x→

limx→0sin2x/sin5xlimx→0(1-cos2x)/x²limx→0in(1-x/2)^1/xlimx→∞(1+2/x)^2x+1limx→0sin2x/sin5xlimx→0(1-cos2x)/x²lim

求教lim x→0 ( cos x / cos2x )^(1/x^2)

求教limx→0(cosx/cos2x)^(1/x^2)求教limx→0(cosx/cos2x)^(1/x^2)求教limx→0(cosx/cos2x)^(1/x^2)用x=e^lnx和洛必达法则

lim(x趋向0) 1-cos2x/xsinx

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lim(x→0)(cos2x-cos3x)/{[(1+x^2)^1/2]-1}

lim(x→0)(cos2x-cos3x)/{[(1+x^2)^1/2]-1}lim(x→0)(cos2x-cos3x)/{[(1+x^2)^1/2]-1}lim(x→0)(cos2x-cos3x)/{[(1+x^2)^1/2]-1}当x→

lim(x→0)(cos2x-cos3x)/{[(1+x^2)^1/2]-1}

lim(x→0)(cos2x-cos3x)/{[(1+x^2)^1/2]-1}lim(x→0)(cos2x-cos3x)/{[(1+x^2)^1/2]-1}lim(x→0)(cos2x-cos3x)/{[(1+x^2)^1/2]-1}lim

求极限 lim(x→0){(cos2x-cos3x)/[(1+x^2)-1]}打错了。应该是lim(

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1.lim(x→0)1-cos2x/x*sinx [x和sinx是一起的]2.lim(x→∞)x^2

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y=lim(x→0) (cos2x)^(1+cot^2x) =lim(x→0) e^ln(1-2xi

y=lim(x→0)(cos2x)^(1+cot^2x)=lim(x→0)e^ln(1-2xin^2x)/xin^2x是采用了哪个公式y=lim(x→0)(cos2x)^(1+cot^2x)=lim(x→0)e^ln(1-2xin^2x)/