求lim tanx（sinx-1）=,x趋进于pai/2

求lim tanx（sinx-1）=,x趋进于pai/2 求极限:lim(sinx)^tanx (x趋近于pai/2) lim(sinx)^tanx (x趋向于pai/2) 有一道数学题 lim a(sinx-x)/x^3=lim a(cosx-1)/3x^2= -a/6极限中 x趋进于02个 求极限：lim(x趋向于0)(sinx-tanx)/x=?它和lim(sinx+tanx)/x有区别吗? 已知tan(pai+x)=-0.5,求【2cosx(sinx-cosx)】/(1+tanx) 求lim x趋近于0 sinx^3 tanx/(1-cosx^2) lim(x趋向于0)((tanx-sinx)/(x*(sinx)^2)) 求极限, 求lim（x趋近于0）(tanx-sinx)/(x-sinx) 求lim x趋向于0(x-sinx)/tanx^3 lim（tanx-sinx）/x＾3,x趋向0,求极限,是1/2吗? 求极限lim(x极限于0)tanx-x\x^2sinx