lim(sin3x/x^3+a/x^2)=b (x趋于0) 求a,b

lim(sin3x/x^3+a/x^2)=b (x趋于0) 求a,b lim(x-0)(sin3x*sin5x)/(x^2) lim(x+sin3x)/(x-sin3x)的极限 lim x趋于0 ln (1+2x)/sin3x lim sin3x/x x→∞ 求极限 lim(sin2x/sin3x) x->π lim（x→0）sin5X/sin3X lim(x →0)sin3x/tan2x 计算下列极限:lim x/sin3x lim x-π sin3x/tan5x 怎么求 lim X趋向于0 arcsin2x/sin3x lim(x趋向于0)arctan2x/sin3x lim（x→0）tan4X/sin3X lim(sin3x/tan4x）x趋向0 极限Lim(x->0)(sin3x)/x= 极限Lim(x->0)(sin3x)/x= 求极限lim x->0 ln(1+sin3x)/arcsin(x+x^2)ln(1+sin3x)lim---------------arcsin(x+x^2) x->0应该能看明白吧 lim [(1-2x)^1/3-(1+2x)^1/4]/sin3x 在x→0时的极限 1、lim(x->无穷大) e^x arctanx2、lim(x->0)sinx√1+sin(1/x)3、lim(x->无穷大)【（√x^2+x+1）-【(√x^2-x+1)】4、lim(x->无穷大)((x+{x+(x)^0.5]^0.5}^0.5)/(2x+1)^0.55、lim(x->0)(sin3x+x^2sin1/x)/((1+cosx)x)6、lim(n->无穷大)(2^n)(si