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Ordinary Differential Equations 3 Mark Creative Question Paper With Answer Key

12th Standard

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Maths

Time : 01:00:00 Hrs
Total Marks : 45

    3 Marks

    15 x 3 = 45
  1. Solve \(\frac { dy }{ dx } +\frac { { y }^{ 2 } }{ { x }^{ 2 } } =\frac { y }{ x } \)

  2. Form the differential equation for y = e-2x [A cos 3x-B sin 3x]

  3. Solve: \(\frac{dy}{dx}=\)(4x + y + 1)2

  4. Solve: x\(\frac{dy}{dx}\)+ 2y = x2

  5. Solve: \(\frac{dy}{dx}+y=cos x\)

  6. Form the D.E of the family of curves c(y + c)= x2, where c is the parameter.

  7. Form the D.E of family of curves represented by y=c(x-c)2.where c is the parameter.

  8. Form the D.E to y2=a(b-x)(b+x) by eliminating a and b as its parameters.

  9. Find the D.E of all circles touching x-axis at the origin.

  10. Find the D.E of all circles touching y-axis at the origin.

  11. Obtain the D.E of all circles of radius ‘r’

  12. Find the D.E of all circles in the first quadrant which touch the co-ordinate axes.

  13. Form the D.E corresponding to y2-2ay+x2=a2 by eliminating ‘a’.

  14. Show that the function y=Acos2x-Bsin2x is a solution of the D.E y2+4y=0

  15. Verify that y=-x-1 is a solution of the D.E (y-x)dy-(y2-x2)dx=0

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