lim(x→0)(ln(1+x)-sin3x)/x3=lim(x→0)(x-3x)/x3为什么

lim(x趋向0)ln(1+sin x)/x^2 求极限：lim x→0 ln[1+sin^2(x)]/[e^(x^2)－1] lim(x→0)[ln(1+x^2)]/[sin(1+x^2)] 求lim(x→0)(sin(ln(1+x)/x-1)/sinx lim x→0 ln(sin(mx))/ln(sin(nx))=? 求极限lim[sin(x^3)/x(x-ln(1+sinx))] x趋于0lim[sin(x^3)/x(x-ln(1+sinx))] x趋于0 lim→0+ lnx ln(1+X) lim x [sin ln(1+3/x)-sin ln(1+1/x)],x趋近于无穷大, lim x→0 (x^4*sin(1/x)+（e^(x^4)）-1)/(ln(1+sinx-tanx)) 求解当x趋向0时lim[sin(2^x)ln(x+1)]/(2^x-1) 求极限lim Ln(1+x) /x > .< x→0 lim(x→0)tan(x)ln(1+x)=? 帮忙解决下列极限计算lim（ln Sin x / ln x ) x→0 X趋向于0 求极限ln(1+2x)/sin(1+2x),lim x->0求它极限. 求极限lim(x趋向于0)ln(1+x^2)/sin(1+x^2) 求极限 ln (1+2x)/sin x,lim x->0 请用洛必达法则求解, lim[sin(ln x)-sin(ln sinx)],x趋近于0+ 对数函数的极限 lim(x→0) [ln(1+x)-ln(1-x)]/x