lim(x→0) xsinx
lim x→0 1-cosx/xsinx
lim(x→0)(1-cos2x)/xsinx
lim(x→0)(1-cos4x)/xsinx
lim(x→0) sinx-x(x+1)/xsinx
求极限lim(x→0) (sinx-x)/xsinx
求极限lim x→0 (1/xsinx+xsin1/x)
lim(x→0)x/(xsinx)=0和lim(x→0)(xsinx)/x=1
求极限lim(x→0)lncosx/xsinx
lim(x→0)(1-cosx)/(xsinx)=?
2.5计算极限lim(x→0) (1-cos2x)/xsinx
lim(x→ 0)(tanx-sinx)/xsinx^2
求下列极限lim(x→0)(1-cosx)/xsinx