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Most Important Selected Qs for JEE AdvancedMathematicsQuadratic Equation

If the equations x^2+2 x+3=0 and a x^2+b x+c=0, a, b, c R , have a common root, then a : b : c is:

Options

  1. A1 : 3 : 2
  2. B3 : 1 : 2
  3. C1 : 2 : 3
  4. D3 : 2 : 1

Correct answer

C. 1 : 2 : 3

Step-by-step solution

x^2+2 x+3=0D=2^2-3 4=-v e , then both roots are common and coefficient ratio are equal a: b: c=1: 2: 3

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