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Α and β are the roots of 4x2 + 3x + 7 = 0, then the value of αβ1α+1β is -

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Question

α and β are the roots of 4x2 + 3x + 7 = 0, then the value of `1/α + 1/β` is:

Options

  • `(-3)/4`

  • `(-3)/7`

  • `3/7`

  • `7/4`

MCQ

Solution

`(-3)/7`

Explanation:

Here α + β = `(-3)/4` and αβ = `7/4`

∴ `1/α + 1/β = (β + α)/(αβ) = ((-3)/4)/(7/4) = (-3)/7`

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