lim(x→0)cotx[1/sinx-1/x]
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lim(x→0)cotx[1/sinx-1/x]lim(x→0)cotx[1/sinx-1/x]lim(x→0)cotx[1/sinx-1/x]lim(x→0)cotx[1/sinx-1/x]=lim
lim(x→0)cotx[1/sinx-1/x]
lim(x→0)cotx[1/sinx-1/x]
lim(x→0)cotx[1/sinx-1/x]
lim(x→0)cotx[1/sinx-1/x]
=lim(x→0)cotx(x-sinx)/(xsinx)
=lim(x→0)(x-sinx)/(xsinxtanx)
=lim(x→0)(x-sinx)/(x^3) (0/0)
=lim(x→0)(1-cosx)/(3x^2)
=lim(x→0)(x^2/2)/(3x^2)
=1/6
=lim(x->0)(cosx/sinx^2-cosx/xsinx)
=lim(x->0)(xcosx-sinxcosx)/x^2sinx^2)
=lim(x->0)(xcosx-(1/2)sin2x)/(x^2sinx^2)
=lim(x->0)(cosx-xsinx-cos2x)/(2xsinx^2+x^2sin2x)
=lim(x->0)(-2sinx-xcosx-2sin2x)/(2sinx^2+4xsin2x+2x^2cos2x)
=lim(x->0)(-3cosx+xsinx-4cos2x)/(6sin2x+12xcos2x+4x^2sin2x)
=-∝
lim(x→0)cotx[1/sinx-1/x]
lim趋于0((tanx-x)/(x-sinx))^(cotx-1/x)
求lim(x趋向0)(1+sinx)^cotx的极限
lim(x→0) (1+tanx)^cotx
关于lim[x->0,cotx(1/sinx-1/x)中使用无穷小替换的问题lim[x->0,cotx(1/sinx-1/x)=lim[x->0,(cotx/sinx-cotx/x)=lim[x->0,1/sinxtanx]-lim[x->0,1/xtanx](用无穷小替换)=lim[x->0,1/x^2]-lim[x->0,1/x^2]=lim[x->0,1/x^2-1/x^2]=lim[x->0,0]=0 这
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