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Let f(x)=a x^(2)+b x+c, a, b, in R, a ne...

Let `f(x)=a x^(2)+b x+c`, a, b, in R, a neq 0 satisfying `f(1)+f(2)=0` . Then the equation `f(x)=0` has

A

no real root

B

1 and 2 are real roots

C

two distinct roots

D

two equal roots

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The correct Answer is:
B
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