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12th Standard English Medium Maths Subject Theory of Equations Book Back 3 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
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Maths

Time : 01:00:00 Hrs
Total Marks : 30

    3 Marks

    10 x 3 = 30
  1. If α and β are the roots of the quadratic equation 17x2+43x−73 = 0 , construct a quadratic equation whose roots are α + 2 and β + 2.

  2. If α and β are the roots of the quadratic equation 2x2−7x+13 = 0 , construct a quadratic equation whose roots are α2 and β2.

  3. If the sides of a cubic box are increased by 1, 2, 3 units respectively to form a cuboid, then the volume is increased by 52 cubic units. Find the volume of the cuboid.

  4. If α, β and γ are the roots of the cubic equation x3+2x2+3x+4 = 0, form a cubic equation whose roots are, 2α, 2β, 2γ

  5. Find the sum of squares of roots of the equation 2x4- 8x3+ 6x2-3 = 0.

  6. Solve the equation 9x3- 36x2+ 44x -16 = 0 if the roots form an arithmetic progression.

  7. Solve the equation 3x3-26x2+52x - 24 = 0 if its roots form a geometric progression.

  8. Solve the equation
    2x- 9x+ 10x = 3

  9. Solve the equation x3- 5x2- 4x + 20 = 0

  10. Find the roots of 2x+ 3x+ 2x + 3 = 0

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