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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 the roots of the equation x^2 - ax - b = 0 ( a, b ∈ R ) are both...

If the roots of the equation x2−ax−b=0x^2 - ax - b = 0 (a,b∈Ra, b \in R) are both lying between −2-2 and 22, then :

Options

  1. A∣a∣<2−b2|a| < 2 - \frac{b}{2}
  2. B∣a∣>2−b2|a| > 2 - \frac{b}{2}
  3. C∣a∣<4|a| < 4
  4. D∣a∣>b2−2|a| > \frac{b}{2} - 2.

Correct answer

A. ∣a∣<2−b2|a| < 2 - \frac{b}{2}

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