Найти dy/dx, если x = cost+sint, y=sint-t*cost
dy/dx=y`_(t)/x`(t) x`(t)=(cost+sint)`=-sint+cost y`(t)=(sint-t*cost)`=cost-(t`*cost+t*(cost)`)=cost-(cost+t*(-sint))= =cost-cost+t*sint=t*sint О т в е т. dy/dx=(t*sint)/(-sint+cost)