设y=uv,而u=ex,v=sinx, 求dy⼀dx

设y=uv,而u=ex,v=sinx, 求dy/dx
2025-06-22 18:42:33
推荐回答(2个)
回答1:

把u和v的表达式带进去再求导啊

回答2:

dy/dx=(uv)'=u'v+uv'=(ex)'v+ex(sinx)'=vex+excosx