lim (1/(xsinx)-1/x^2)x~0
lim (1/(xsinx)-1/x^2)x~0
lim x→0 1-cosx/xsinx
lim(x→0)(1-cos2x)/xsinx
X趋向0 lim(xsinx)/(1-cosx)
lim(x→0)(1-cos4x)/xsinx
lim(x→0) sinx-x(x+1)/xsinx
lim(x~无穷)xsin1/x-1/xsinx
求极限lim x→0 (1/xsinx+xsin1/x)
:lim(xsin1/x+1/xsinx)x趋于0
lim(x→0)x/(xsinx)=0和lim(x→0)(xsinx)/x=1
lim(x→0)(1-cosx)/(xsinx)=?
2.5计算极限lim(x→0) (1-cos2x)/xsinx