Solve the differential equation 
2
(
0)
x
x
y
y
y e dx
x e
y
dy y
⎛
⎞
⎜
⎟
=
+
≠
⎝
⎠ 11 Find a particular solution of the differential equation  (x – y) (dx + dy) = dx – dy,
given that y = –1, when x = 0 (Hint: put x – y = t)
© NCERT
not to be republished
DIFFERENTIAL EQUATIONS
421
12