lim(3x^3+2x^2cosx+1)/(x^3-2xsinx+3)= 其中x趋向无穷大

lim(x^3+1)(3+cosx)/2x^4-1(x趋向无穷大)的极限 求极限lim[e^xsinx-x(1+x)]/x^3 其中X趋向于0 lim（x-3/x+1）^x lim趋向无穷大 幂指函数求极限 lim x趋向无穷大（x-3/x+2）^x= x趋向无穷大时求lim√(x^2-3x+1)/x极限 X趋向0 lim(xsinx)/(1-cosx) 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. x趋向于无穷大lim(2x^3-x^2+5)/(3x^2-2x-1) 求极限LIM(X-1)(X-2)(X-3)/(1-2X)的3次方 (X趋向无穷大) 求极限LIM(3X²-2X-1)/(2X²-3X+1) (X趋向无穷大) lim(x趋向于0)(cosx)^[1/(xsinx)]= 1.lim(x趋向0时)[x^2(1-cosX)]/[(1+e^X)(sinX)^3]