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Suppose a, b, c, d in R and 2ac = b + d...

Suppose `a, b, c, d in R and 2ac = b + d. ` Consider the quadratic equations `x^2+ 2ax + b = 0 and x^(2) + 2cx + d = 0` . Then

A

none of these equations have real roots

B

both the equations have real roots

C

exactly one of the equation has real roots

D

at least one of the equation has real roots

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The correct Answer is:
D
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