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IF alpha , beta are the roots of ax ...

IF `alpha , beta ` are the roots of `ax ^(2)+bx +c=0` then `alpha ^3 + beta ^3=`

A

`(3abc-b^3)/(a^3)`

B

`-b/c`

C

`((b^2-2ac))/(c^2)`

D

`((b^2-2ac))/(ac)`

Text Solution

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-QUADRATIC EXPRESSIONS-EXERCISE 1A (QUADRATIC EQUATIONS)
  1. IF alpha , beta are the roots of ax ^2 +bx +c=0 then (1)/(alp...

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  2. IF alpha , beta are the roots of ax ^2 +bx +c=0 then (1)/(alp...

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  3. IF alpha , beta are the roots of ax ^(2)+bx +c=0 then alpha ^3 +...

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  4. IF alpha , beta are the roots of ax ^2 + bx +c=0 then (alpha ^2...

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  5. IF alpha , beta are the roots of ax^2+ bx + c=0 then (1)/(alpha...

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  6. If alpha , beta are the roots of ax ^2 + bx +c=0 then alpha ...

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  7. IF alpha , beta are the roots of ax ^2 + bx + c=0 then (alpha...

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  8. IF alpha , beta are the roots of ax ^2 + bx +c=0 then (alpha ^3...

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  9. IF alpha , beta are the roots of ax^2+bx +c=0 then ((alpha )/(be...

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  10. IF alpha , beta are the roots of ax^2+bx +c=0 then ((1)/(alpha ^2...

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  11. IF alpha , beta are the roots of ax^2+bx +c=0 then (a alpha + b...

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  12. IF alpha , beta are the roots of ax ^2 + bx + c=0 then ( a al...

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  13. IF alpha , beta are the roots of ax ^2 + bx +c=0 then ((alpha )/...

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  14. IF alpha ,, beta are the roots of the equation 8x^2-3x+27=0 then...

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  15. If alpha , beta are the roots of ax^2+bx +c=0 then (1+ alpha +...

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  16. If alpha , beta are the roots of ax ^2-2bx + c=0 then alpha ...

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  17. IF alpha , beta are real and alpha ^2 , - beta ^2 are the ro...

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  18. If alpha , beta are the roots of x^2-2x + 4 =-0 then alpha ^5...

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  19. If alpha and beta are the roots of the equation x^2-2x+4=0...

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  20. Let alpha and beta be the roots of equation px^2 +qx+r =0 , p n...

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