(1)y-sin(Inx)求y (2)(e^x+y)-xy=0求dy

问题描述:

(1)y-sin(Inx)求y (2)(e^x+y)-xy=0求dy

第一题问得不清楚,看不懂.
第二题,两边求导,得e^x+y'-(x'y+xy')=0
整理得,dy=(e^x-y)*dx/(x-1)