lim(x→0)(x/2)/sin2x
求lim(x→0) (x+sin2x)/(x-sin2x)
lim(X->0)sin2x/x =lim(X->0)2(sin2x/2x)=2
sin2x lim ------- x→0 tan3x
lim(x→0)(x-sin2x)/(x+sin5x)
lim(x->0)(tan3x+2x)/(sin2x+3x)
求极限 lim x→π/2 (sin2x)^3 lim x→0 根号(1+x^2)-1/x
lim sin2x/2x x→+无限 的极限是什么
lim sin2x/3x x趋向0
lim x-0 sin2x/x 求极限
计算极限lim(x→0)[1-x^2-e^(-x^2)]/(sin2x)^4
求极限lim(x→0){(2x-sin2x)/xsin^2x}
求极限 lim(x→0){x[sin(1/x^2)-1/sin2x]}