猎命师 雅典娜的祝福:ctgx 的导数是多少?
来源:百度文库 编辑:高考问答 时间:2024/05/19 13:02:10
(ctg x)'
==(cos x/sin x)'
==(-sin x*sin x-cos x*cos x)/(sin x)^2
==-1/(sin x)^2
==-(csc x)^2
-1/(sinx)^2
cosx
-(CscX)^2
(ctg x)'
==(cos x/sin x)'
==(-sin x*sin x-cos x*cos x)/(sin x)^2
==-1/(sin x)^2
==-(csc x)^2
-1/(sinx)^2
cosx
-(CscX)^2