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lf p, q, r in R and the quadratic equati...

lf `p, q, r in R` and the quadratic equation `px^2 + qx + r = 0` has no real root, then

A

`p(p+q+r)lt 0`

B

`p(p-2q+4r)gt 0`

C

`p(p+4q+2r)lt0`

D

none of these

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The correct Answer is:
B
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