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AP EAMCET202419 May 2024Evening ShiftMathematicsQuadratic EquationActual

If , , are roots of the equation x^3+a x^2+b x+c=0 then ⁻¹+ ⁻¹+ ⁻¹=

Options

  1. Aa c
  2. B- b c
  3. Cc a
  4. Db a

Correct answer

B. - b c

Step-by-step solution

Given , , are roots of x^3+a x^2+b x+c=0 So, = -c a and + + = b a Now, ⁻¹+ ⁻¹+ ⁻¹= + + = -b c .

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