求lim (sin^2x+x)/(cos^2x-x) x趋向于无穷
问题描述:
求lim (sin^2x+x)/(cos^2x-x) x趋向于无穷
答
/x
=【0+1]/[0-1]=-1
求lim (sin^2x+x)/(cos^2x-x) x趋向于无穷
/x
=【0+1]/[0-1]=-1