lim(2x^3+3x^2+5)/(7x^3+4x^2-1)

求极限lim (3x^3+5x^2+x) / (7x^3+5x-4) lim(x->0)((2-x)/(3-x))^1/x lim(x->2) {(3x+16)^1/2-4}/x 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 lim(x+5)(2x-1)/(x^2-3x-1)球极限,x无穷大 1.4求极限lim(x→∞) (x^2+x)/ (x^4-3x^+1) lim(x→∞)(x^2+x)/(x^4-3x-1)的极限 极限和导数 忘弄题了：lim （4X^3-2X^2+X）/3X^3+2X lim (1-X/3)*(2/X^2)x-0 求极限值,limx→（x^2-1/x-1）和lim x→∞（2x^3-3x^2+4/5x^3+x-7)谢谢! 极限lim(x^2+2x+3)/(x-1) 求极限lim(1-2/x+3/x^2)^x lim(x趋向无穷)[1-(2/x)]^3x