CBSE Guess > Papers > Important Questions > Class XII > 2010 > Maths > Mathematics By Mr Vasu Raj
CBSE CLASS XII
Q. 15. Find
if 
Q. 16. Find 
if y = x log (logx)
Q. 17. If x = a(cos q + qsinq), y =a(sin q -qcosq), find 
Q. 18. If Sin y = x sin ( a + y ) , with Cos a ≠ 1, P.T 
Q. 19. Find 
, if x = 
Q. 20. If 
Q. 21. If y = acos(logx) +bsin(logx). S.T.x2y2+xy1+y=0.
Q. 22. If y = 
, Prove that (1+x2)2y2 +2x((1+x2)y1 = 2.
Q. 23. If 
, show that (1+x2 ) y2+(2x-1)y1=0.
Q. 24. If 
, show that (1-x2 )y2 -xy1 = 0
Q. 25. If 
, show that (1-x2 )y2 -xy2 -a2y =0 .
Q. 26. If 
show that (1-x2 )y2 -xy1-m2y =0 .
Q. 27. If y = 3e2x+2e3x, then prove that y2-5y1+6y=0
Q. 28. If (x-a)2 +(y-b)2 = c2 ,for some c>0. prove that 
is a constant, independent of a and b .
Q. 29. If x =sint, y = sinpt. Show that 
Q. 30. If y = sin
. S.T. (1-x2)y2-xy1+ m2y =0.
Paper By Mr Vasu Raj
Email Id : [email protected]
Ph No. : 9940116934
