Scotan(x)[sin(x)]^(1/2)dx
=S cos(x)dx/[sin(x)]^(1/2)
= Sd(sin(x))/[sin(x)]^(1/2)
= 2[sin(x)]^(1/2) + C
其中,C为任意常数.您好！我想问一下那个第一行 cotan是什么？cotan(x) = 1/tan(x) = cos(x)/sin(x) = cot(x)哦，谢谢！多谢楼主采纳。。
楼主威武。。