Lim(x趋向2)(x^3+2x^2)/(x-2)^2怎么做?
lim(x趋向无穷)[1-(2/x)]^3x
lim(x趋向于负无穷)((x^2+1)^1/2+x)怎么做?
lim(x趋向无穷大)[1+2/(x+2)]^(x+2)
lim(x趋向0)ln(1+sin x)/x^2
lim(x趋向无穷)(cos1/根号x)^2x
lim x趋向0 x^2-sinx/x+sinx
lim(x/(1+x^2)),x趋向无穷大
求极限 (1) x趋向x/6 lim ln(2cos2x) (2) x趋向0 lim(e^x-1)/x (3) x趋向0
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导数计算问题lim x趋向无穷[(x-3)(2x^2+1)]/(2-7x^3)lim x趋向4 [e^x+cos(4-x
1、lim(tanx-sinx)/x的立方.x趋向0,2、lim{(2-x)/2}的2/x-1次方.x趋向0,3、lim
证明极限 x趋向-1时,lim(x^2-2x)/(x+2)=3