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If alpha and beta are the roots of the e...

If alpha and beta are the roots of the equation`x^(2)-ax+b=0`,find
Q`(a)(alpha)/(beta)+(beta)/(alpha)`

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The correct Answer is:
b
`(alpha^(2)-2b)/(b)`
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PREMIERS PUBLISHERS-BASIC ALGEBRA-PROBLEMS FOR PRACTICE I -Choose the correct option for the following(MCQ)
  1. If alpha and beta are the roots of the equationx^(2)-ax+b=0,find Q(a)(...

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  2. Solve 2|x - 5|+ 5 = 21

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  3. x le 6 and x ge - 2 is given by interval notation as

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  4. A cubic equation has roots 2 and 1+ sqrt3 Then its equation is

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  5. If x^(2)-6x+k = 0 has equal roots the value of k is

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  6. The solution set for the inequality2x^(2)+5x-3is

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  7. If a and b are the roots of the equation x^(2)- kx + 9 = 0 and satisfy...

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  8. The solution set of the following inequality |x - 1| le |x - 3| is

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  9. sqrtp (where p is a prime number) is

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  10. log(2)4+ log(4)4 + log(16)4 is equal to

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  11. (x^(8)y^(4))^((1)/(4))

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  12. Match the following

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  13. Find the incorrect statement in the following.

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  14. Find the incorrect statement in the following

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  15. Find the correct statement in the following

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  16. Find the correct statement in the following

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  17. Find the incorrect statement in the following

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  18. Find the odd one out The inequalities -3x gt 0 or 3x - 4 lt 11 is repr...

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  19. Find the odd one out with respect to root of

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  20. Find the odd one out from the following

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  21. Assertion: The equation x^(2)+|x-1|=1two solutions. Reason: |x| = x if...

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