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If (b^2-4a c)^2(1+4a^2)<64 a^2, a<0 , th...

If `(b^2-4a c)^2(1+4a^2)<64 a^2, a<0` , then maximum value of quadratic expression `a x^2+b x+c` is always less than a. 0 b. 2 c. -1 d. -2

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CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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  11. If alpha,beta,gamma are the roots of he euation x^3+4x+1=0, then find ...

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  13. If a ,b ,p ,q are non zero real numbers, then how many comman roots wo...

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  14. If x^2+p x+q=0a n dx^2+q x+p=0,(p!=q) have a common roots, show that ...

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  15. a,b,c are positive real numbers forming a G.P. ILf ax^2+2bx+c=0...

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  17. If x is real and the roots of the equation a x^2+b x+c=0 are imaginary...

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  18. Solve (x^2+2)^2+8x^2=6x(x^2+2)

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  19. Find the value of 2+1/(2+1/(2+1/(2+oo)))

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  20. If both the roots of a x^2+a x+1=0 are less than 1, then find the exha...

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