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If the equation x^(2) - kx + 1 = 0 has e...

If the equation `x^(2) - kx + 1 = 0` has equal roots. Then

A

k= 1

B

k = -1

C

k = 2

D

k = -4

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VGS PUBLICATION-BRILLIANT-QUADRATIC EQUATIONS-EXERCISE
  1. Product of the roots of the Q.E. 3x^(2) - 6x + 11 = 0 "is"

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  2. The Q.E. whose roots are -2,-3 is

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  3. If the equation x^(2) - kx + 1 = 0 has equal roots. Then

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  4. If (x - 3)(x + 3) = 16 then the value of x is

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  5. If the sum of the roots of the Q.E. 3x^(2) + (2k + 1) x - (k + 5) = 0 ...

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  6. The Q.E. whose one root is 2 - sqrt 3 is

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  7. Form a quadratic equation whose roots are k and 1/k

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  8. The roots of a quadratic equation x/p = p/x are

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  9. The roots of a quadratic equation ax^(2) + bx + c = 0 "is"

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  10. The product of the roots of the quadratic equationsqrt 2 x^(2) - 3x + ...

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  11. In the above problem a5=…

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  12. The sum of the roots of the quadratic equation 5x^(2) + 4 sqrt 3 x - 1...

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  13. Find the zeroes of the quadratic polynomials given below. Find the sum...

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  14. The quadratic equation whose roots are -3 and -4 is …

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  15. If one root of a quadratic equation is 7 - sqrt 3 then the quadratic e...

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  16. The nature of the roots of a quadratic equation 4x^(2) + 5x + 1 = 0 is...

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  17. The nature of the roots of quadratic equation 3x^(2) + x + 8 = 0 is…

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  18. The nature of the roots of a quadratic equation 4x^(2) - 12x + 9 = 0 i...

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  19. The roots of a quadratic equation (sqrt 2 x + 3) (5x - sqrt 3) = 0are…...

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  20. The roots of the quadratic equation (x^(2) - 8)/(x^(2) + 20) = 1/2 are...

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