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Find the value of discriminant. 2y^(2)...

Find the value of discriminant.
`2y^(2)-5y+10=0`

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The correct Answer is:
(ii) `b^2-4ac=-55`
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TARGET PUBLICATION-QUADRATIC EQUATIONS-Practice set 2.5
  1. Fill in the gaps and complete. (iii)

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  2. Find the value of discriminant. x^(2)+7x-1=0

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  3. Find the value of discriminant. 2y^(2)-5y+10=0

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  4. Find the value of discriminant. sqrt(2)x^(2)+4x+2sqrt(2)=0

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  5. Determine the nature of roots of the following quadratic equations. ...

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  6. Determine the nature of roots of the following quadratic equations. ...

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  7. Determine the nature of roots of the following quadratic equations. ...

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  8. Form the quadratic equation from the roots given below. 0 and 4

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  9. Form the quadratic equation from the roots given below. 3 and -10

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  10. Form the quadratic equation from the roots given below. 1/2 and (-1)...

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  11. Form the quadratic equation from the roots given below. 2-sqrt(5) an...

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  12. Sum of the roots of a quadratic equation is double their product. Find...

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  13. alpha, beta are roots of y^(2)-2y-7=0 find, (i) alpha^(2)+beta^(2) "...

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  14. alpha, beta are roots of y^(2)-2y-7=0 find, (i) alpha^(2)+beta^(2) "...

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  15. The roots of the each of the following quadratic equations are real an...

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  16. For what value of k, are the roots of the quadratic equation kx (x-2) ...

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  17. Fill in the gaps and complete. (i)

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  18. Fill in the gaps and complete. (ii)

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  19. Fill in the gaps and complete. (iii)

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  20. Find the value of discriminant. x^(2)+7x-1=0

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