limx趋向0,x^2+1/2x^2-3怎么做?
limx趋向1 2x+3/x-1 求极限
limx趋向无穷大,(1+1/x)^3x+2=?
limx趋向0[ln(1+x^2)/secx-cosx]
limx趋向于0(2x-1)^5/((2x+1)^2(1-3x)^2)
limx趋向0(2x-1/3x-1)的x/1次方的极限
limx趋向于0,x^2/ln(1-3x)=?
limx趋向于0,k(1+3x))^-2/x (k为常数.求极限
求极限LIMx趋向0 in(1+2x)/3x,
求极限:lim[√(2X+1)-3]/[√(x-2)-√2] x趋向于4?limx/[1-√(1+x)] x趋向于0 (
limx趋向于无穷时4x^3-2x+8/3x^2+1
求极限 limx趋向无穷(2x+3/2x+1)∧x+1
利用重要极限公式求limx趋向于0(1+x/2)^x-1/x