百科知识

已知y=lnsinx,则dy=?

2008-03-16 11:21:171***
已知y=lnsinx,则dy=?:y = ln(sin(x)) dy = (ln(sinx))'*(sin(x))'dx = (1/sinx)*c?

最佳回答

  • y = ln(sin(x)) dy = (ln(sinx))'*(sin(x))'dx = (1/sinx)*cos(x)dx = (cosx/sinx)dx = cot(x)dx.
    2008-03-16 11:50:45
  • y=lnsinx dy=dsinx/sinx=cosxdx/sinx=cotxdx.
    2008-03-16 22:27:26
  • dy=(1/sinx)d(sinx)=(cosx/sinx)dx=(ctgx)dx。
    2008-03-16 21:43:34
  • 很赞哦! (95)