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If alpha , beta , gamma are the roo...

If ` alpha , beta , gamma ` are the roots of the equation `x^3 +4x^2 -5x +3=0` then ` sum (1)/( alpha^2 beta^2)=`

A

`-9/2`

B

`-(38 )/( 49 )`

C

`(26 )/(9)`

D

`98`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-THEORY OF EQUATIONS-EXERCISE-III
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  4. If alpha , beta , gamma are the roots of x^3 + 2x^2 + 3x +8=0 ...

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  7. The equation whose roots are squares of the roots of x^3 + 2...

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  8. The equation whose roots are cubes of the roots x^3 +2x^2 +3=0...

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  9. If f(x) =x^3 +x^2 +x+1 then the coefficient of x in f(x+5) i...

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  10. The equation whose roots are opposite in sign and equal to magn...

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  11. To remove the 2^( nd ) term of the equation x^4 - 8x^3 + x^2...

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  12. The transformed equation of x^3 -6x^2 +5x +8=0 by eliinatin second...

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  13. If the roots of ax^(3) + bx^2 + cx + d=0 are in G.P then the ...

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  14. If 2,5,7,-4 are the roots of ax^4 + bx^3 + cx^2 + dx +e=0 then...

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  15. If the roots of ax^3 + bx^2 + cx +d=0 are in G.P then the ro...

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  16. If the roots of ax^3 + bx^2 + cx +d=0 are in A.P then the roots...

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  17. solve x^5-5x^4+9x^3-9x^2+5x-1=0

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