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lim(tan^3(3x)/(X^2sin(2x))(x趋近于0)
lim(x趋向0)ln(1+sin x)/x^2
x趋向于无穷时 lim (3x-1)/(x^3 乘以 sin(1/x^2 ))
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lim(x趋向于0)(1-cosx)/x^2
若lim[x/f(3x)]=2(x趋向于0),则lim[f(2x)/x]=?(x趋向于0)
文科高数题目lim[1/(x+1)-3/(x^3+1)] x趋向于-1 lim[(e^2x-1)/x] x趋向于0 没学
求lim [sin(x^2-1)]/(x-1) x趋向于1的极限.
设lim(X趋向于0) f(2X) / X等于2/3 则lim(X趋向0) X/ f(3X)等于?