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IMPORTANT
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Assertion A: 3x2-16x+4>-16 is satisfied for some values of real x in 0,103

Reason R: ax2+bx+c and a will have the same sign for some values of xR when b2-4ac>0

The correct option among the following is

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Important Questions on Theory of Equations

MEDIUM
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IMPORTANT
fx=ax2-bx-a is a quadratic expression. If K is the least real number such that fxK,  xR, then
EASY
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IMPORTANT
The smallest negative integer satisfying both the quadratic inequalities x2<4x+77 and x2>4 is
EASY
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IMPORTANT
If x2-5x-14>0x lie outside [α, β], then αβ=
MEDIUM
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IMPORTANT
If y=x2+14x+9x2+2x+3x, then the interval of maximum length in which y lies is
HARD
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IMPORTANT
If the roots of the equation x2+x+a=0 exceed a, then
MEDIUM
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IMPORTANT
Let α, β, γ be the roots of the equation x3+px+q=0 and fx=3p2x2+p2x+3q. Then α2β+α4=
MEDIUM
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IMPORTANT
If α, β, γ are the roots of the equation x3+ax2-bx+c=0, then β2γ+α=
MEDIUM
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IMPORTANT
If the roots of the equation x1-x+1-xx=52 are p and qp>q and the roots of the equation p+qx4-pqx2+pq=0 are α, β, γ, δ, then Σα2-Σαβ+αβγδ=