lim(x+5)(2x-1)/(x^2-3x-1)球极限,x无穷大

lim(x+5)(2x-1)/(x^2-3x-1)球极限,x无穷大 lim(2x^3-x^2+1)/(3x+1) (x趋于无穷大）的极限 lim( (2x+3)/(2x+1) )^(x+1) x趋于无穷大的极限 lim(2x^2+1/3x-1)•sin1/x. X趋于无穷大,求极限 x趋向无穷大时求lim√(x^2-3x+1)/x极限 lim(3^x+9^2x)^1/x,x趋于无穷大,求极限! lim(x^3+1)(3+cosx)/2x^4-1(x趋向无穷大)的极限 求极限x→无穷大lim(1-2/3x)^(x+1)麻烦具体 lim(1+2/x)^x+3 x→无穷大 求极限 速求高数解答,lim(1-x分之3)x+2次方,x趋向无穷大,求极限. 求极限问题{x趋向于无穷大} lim[(2x-1)/(2x+1)]^(x+1), 求极限 x趋于无穷大 lim[x-x^2ln(1/x+1)]