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Black Advanced Problems in Mathematics
Exam
Black Advanced Problems in Mathematics
Subject
Mathematics
Chapter
Quadratic Equation

Black Advanced Problems in Mathematics · Mathematics · Quadratic Equation

If (a, 0) is a point on a diameter inside the circle x^2 + y^2 = 4...

If (a,0)(a, 0) is a point on a diameter inside the circle x2+y2=4x^2 + y^2 = 4. Then x2−4x−a2=0x^2 - 4x - a^2 = 0 has :

Options

  1. AExactly one real root in (−1,0](-1, 0]
  2. BExactly one real root in
  3. CDistinct roots greater than −1-1
  4. DDistinct roots less than 5.

Correct answer

A. Exactly one real root in (−1,0](-1, 0]

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