lim(x->0)(-x)sin(1/x)=0这是对的?不是等于-1吗?

求极限,lim x趋于0 x * sin 1/x lim(x趋向0)ln(1+sin x)/x^2 求极限lim(x-->0)x^2 sin(1/x), lim （x→0）x sin 1/x= lim x->0 (sin x-tan x)/sin (x^3) 求极限 lim sin(x^2 * sin (1/x))/x x->0求极限 lim sin(x^2 * sin (1/x))/x x->0 lim x->0 ,sin(1/x) 的极限?lim x->0 ,x*( sin(1/x) ) 的极限? lim(x(sin)^2) lim x->0(sqrt(sin(1/x^2)) 求极限 lim(1+sinx-sin(sinx))^x^-3 x趋于0 求极限 （（sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1 lim（x ->0）sin x /x ^3+3x lim(x→0)×(x-sin²3x)/x lim (x->0) sin(3x)+4x/xsec(x) lim x趋于0 （x-sin x）/x^3 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(x->0) 1-x^2-e^(-x^2)/x*sin^(3)2x lim (x->0) [tan(tan x)-sin(sin x)]/(tan x -sin x)