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If two roots of the equation x^3-px^2+qx...

If two roots of the equation `x^3-px^2+qx-r=0` are equal in magnitude but opposite in sign, then:

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A DAS GUPTA-Equations, Inequation and Expressions-Exercise
  1. If the roots of x^3+px^2+qx+r=0 are in GP find the relation between p,...

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  2. If (mr ,1//mr),r=1,2,3,4, are four pairs of values of xa n dy that sat...

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  3. If two roots of the equation x^3-px^2+qx-r=0 are equal in magnitude bu...

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  4. Solve the equation 24x^3-14x^2-63x + alpha= 0, one root being double ...

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  5. If alpha,beta,gamma be the roots of ax^3+bx^2+cx+d=0 then find the val...

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  6. If alpha,beta,gamma be the roots of ax^3+bx^2+cx+d=0 then find the val...

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  7. If alpha,beta,gamma are the roots of the equation ax^3+bx^2+cx+d=0 the...

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  8. If the equation x^2+px+q=0andx^2+p'x+q'=0 have a common root , prove t...

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  9. Find the sum of all the values of m so that , the equations 3x^(2)-2mx...

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  10. Prove that equations (q-r)x^2 + (r-p)x + p-q = 0 and (r-p)x^2+(p-q)x+q...

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  11. Prove that , if the equations x^2+bx+ca=0 and x^2+cx+ab=0 have only no...

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  12. If the two equation x^(2)-cx+d=0 and x^(2)-ax+b=0 have one common root...

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  13. If ax^2+2bx+c=0 and a1x^2=2b1x+c1=0 have commonroot and a/a1,b/b1,c/c1...

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  14. If equations ax^(2)-bx+c=0 (where a,b,c epsilonR and a!=0) and x^(2)+2...

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  15. If a,b,c, a1,b1,c1 are rational and equations ax^2+2bx+c=0 and a1x^2+2...

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  16. If the equation x^2+ax+12=0 , x^2 +bx +15 =0 and x^2 (a+ b) x+ 36 =0 ...

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  17. Let lambda,mu be such that the equations 4x^2 - 8x + 3 = 0, x^2 + lamb...

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  18. Find the values of a for which x^2-ax+1-2a^2ge0 for real values of x.

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  19. Find the minimum value of 3x^2-6x+7, x in R and also find the correspo...

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  20. Find the maximum value of (2+3x)(1-x),x in R and also find the corresp...

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