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Find the condition for which the quadrat...

Find the condition for which the quadratic equation `ax^2+bx+c=0` has exactly one zero root.

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The correct Answer is:
c=0,`ane0,bne0`
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CHHAYA PUBLICATION-QUADRATIC EQUATIONS-EXERCISE 5A(Very Short Answer type Question)
  1. If the ratio of the roots of the equation x^2-px+q=0 be 1:2, find the ...

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  2. If the roots of the equation qx^2+px+q=0 be imaginary, where p,qgt0, t...

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  3. Find the condition for which the quadratic equation ax^2+bx+c=0 has ex...

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  4. IF the equation 4x^2+2bx+c=0,b=0, find the relation between the roots...

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  5. IF alpha be a root of the equation ax^2+bx+c=0, show that kalpha (kne0...

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  6. Find the quadratic equation with real coefficients which has 2±3i as a...

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  7. Form a quadratic equation with rational coefficients whose one root is...

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  8. IF alpha and beta are the roots of the equation x(x-3)=4, find the val...

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  9. IF a,b,c are in G.P prove that the roots of the equation ax^2+2bx+c=0 ...

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  10. Find m, given that the difference of the roots of the equation 2x^2-12...

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  11. If alpha and beta be the roots of the equation (x-a)(x-b)=c (cne0),pro...

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  12. IF 2+sqrt3i is a root of the equation x^2+px+q=0 where p and q are rea...

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  13. Find the value of p so that the roots of the equation 3x^2-2(7+9p)x+(8...

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  14. IF x is real , find the signs of the each of the following expressions...

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  15. IF x is real , find the signs of the each of the following expressions...

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  16. IF x is real , find the signs of the each of the following expressions...

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  17. IF x is real , find the signs of the each of the following expressions...

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  18. If x be real , find the maximum value of each of the following express...

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  19. If x be real , find the maximum value of each of the following express...

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  20. If x be real , find the maximum value of each of the following express...

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