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Find the condition if the roots of a x^2...

Find the condition if the roots of `a x^2+2b x+c=0 and b x^2-2sqrt(a c )x+b=0` are simultaneously real.

A

a=b, c=0

B

`ac= b^(2)`

C

`4b^(2)=ac`

D

`ab=c^(2)`

Text Solution

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The correct Answer is:
D
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