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If alpha,beta are the roots of the equa...

If `alpha,beta` are the roots of the equation `ax^2+ bx +c =0`, then `alpha/(alphabeta+b)+beta/(a alpha+b)` is equal to -

A

2/a

B

2/b

C

2/c

D

`-2//a`

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Knowledge Check

  • If alpha and beta are the roots of the equation ax^2+bx+c=0 , then alpha/(alphabeta+b)+beta/(a alpha+b) is equal to

    A
    `2/a`
    B
    `2/b`
    C
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    D
    `-2/a`

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    `(b^2 - 2ac)/(ac)`
    B
    `(b^2 - ac)/(ac)`
    C
    `(c^2 - 2ab)/(ab)`
    D
    `(c^2 -a^2)/(ab)`

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    `ab`
    B
    `bc`
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