A. yey/x+x=c
B. yey/x-x=c
C. yey/x+y=c
D. yey/x+x=c
The solution ofn(ex+1)y dy+(y+1)dx=0 is
The curve represented by X= 2( cos t + sin t ), y=( cos t - sin t ) is
The solution of ex-y dx+ey-x dy=0 is