求极限 lim (x趋向于0) x^3/(x-sinX)
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求lim x趋向于0(x-sinx)/tanx^3
求极限:lim(x^2*sinx-2x^3)/(x^3+2x^4) 当x趋向于0
lim(x趋向于0)((tanx-sinx)/(x*(sinx)^2)) 求极限,
lim x-sinx/x(e^2-1)求极限x趋向于0
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求极限lim (sinx/x)^(1/1-cosx),x趋向于0
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