CBSE Guess > Papers > Important Questions > Class XII > 2010 > Maths > Mathematics By Mr Vasu Raj
CBSE CLASS XII
Q. 9. Solve 
.
Q. 10 Show that the general solution of 
is given by (x+y-1) = A(1-x-y-2xy) where A is parameter.
Q.11 Solve cosx(1+cosy)dx-siny(1+sinx)dy=0.
Q. 12. Solve Sec2xtanydx+sec2ytanxdy = 0.
Q. 13 (1+e2x)dy+(1+y2)exdx=0.
Q.14 3extanydx + (1-ex)sec2ydy=0.
Q.15. Solve cosydy + cosxsinydx = 0 given y = p/2 when x = p/2.
Homogeneous type
Q. 1. Solve 
Q. 2. Solve xdy-ydx = 
Q. 3. Prove that 
is the general solution of the differential equation 
where c is a parameter.
Q. 4 . Prove that 
is homogeneous and solve it.
Q. 5 Solve (x+y)dy + (x-y)dx = 0 given y = 1 when x = 1.
Q. 6 Solve (x2-y2)dx+2xydy=0 given y = 1 when x = 1.
Q. 7 Solve (x2+xy)dy = (x2+y2)dx.
Q. 8 Solve (3xy+y2)dx + (x2+xy)dy=0.
Q. 9 Solve (xdy-ydx) = 
dx.
Q. 10 Solve (xdy-ydx)y
=(ydx+xdy)x
.
Q 11 . 
Paper By Mr Vasu Raj
Email Id : [email protected]
Ph No. : 9940116934
