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Class 11

Argand Plane, Polar Form and Quadratics, Quiz

Five questions on the Argand plane, polar form and quadratics with complex roots. Pick one answer for each.

5 questions, one mark each. 3 to pass. Suggested time: 10 minutes. Your answers are not recorded.

  1. Find the modulus and principal argument of 1+i31 + i\sqrt{3}.
  2. Find the principal argument of −2−2i-2 - 2i.
  3. What is the principal argument of −6-6?
  4. Solve x2+2x+5=0x^2 + 2x + 5 = 0.
  5. In the Argand plane, which point represents the conjugate of 3−4i3 - 4i?
Unanswered questions are marked wrong.

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