Important Questions of Complex Numbers and Quadratic Equations Mathematics | Zigya

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement
291.

The region represented by z = x + iy  C : z - Rez  1 is also given by the inequality

  • y2  2x + 1

  • y2  x + 12

  • y2    2x +1

  • y2  x + 1


292.

If α and β be two roots of the equation x2 – 64x + 256 = 0. Then the value of α3β518 + β3α518 = ?

  • 2

  • 4

  • 4

  • 3


293.

If α and β are the roots of the equation 2x(2x + 1) = 1, then β is equal to :

  • 2αα - 1

  • 2αα + 1

  • 2α2

  •  - 2αα + 1


294.

If the complex numbers z1, z2, z3 and z4 denote the vertices of a square taken in order. If z1 = 3 + 4i and z3 = 5 + 6i, then the other two vertices z2 and z4 are respectively

  • 5 + 4i, 5 + 6i

  • 5 + 4i, 3 + 6i

  • 5 + 6i, 3 + 5i

  • 3 + 6i, 5 + 3i


Advertisement
295.

If 1 + ix - i2 + i + 1 + 2iy + i2 - i = 1, then x, y =?

  • 73, - 715

  • 73, 715

  • 75, - 715

  • 75, 715


Advertisement