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If alpha and beta (alpha lt beta) are th...

If `alpha and beta (alpha lt beta)` are the roots of the equation `x^(2) + bx + c = 0`, where `c lt 0 lt b`, then

A

`alpha lt beta lt 0`

B

`alpha lt 0 lt beta lt |alpha|`

C

`0 lt alpha lt beta`

D

none of these

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The correct Answer is:
B
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ML KHANNA-THEORY OF QUADRATIC EQUATIONS -Self Assessment Test
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  7. If alpha and beta (alpha lt beta) are the roots of the equation x^(2) ...

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  8. If 2a+3b+6c=0, then prove that at least one root of the equation a x^2...

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  9. If the roots of the equation (x^2-b x)/(a x-c)=(m-1)/(m+1) are equal t...

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  10. If sin alpha, cos alpha are the roots of the equation ax^(2)+bx+c=0, t...

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  11. If alpha, beta are the roots of x^(2)-ax+b =0 and If alpha^(n)+beta^(n...

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  12. The value of a for which one root of the quadratic equation (a^2-5a+3)...

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  13. If a,b, c are in G.P., then the equations ax^(2) + 2bx + c = 0 and dx^...

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  14. If 3 le 3t-18 le 18 then which one of the following is true

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  15. Let alpha (a) and beta (a) be the roots of the equation (root(3)(1+a)-...

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  16. Let alpha,beta be real and z be a complex number. If z^2+alphaz""+beta...

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  17. Let p and q be real numbers such that p ne 0, p^(3) ne q and p^(3) ne ...

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  18. A value of b for which the equation x^2+b x-1=0,x^2+x+b=0 have one roo...

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