Nature of Roots

50. F(x)=ax+b...

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50. F(x)=ax+bx+c, a>0 F(x)=f(4-x) xR f(f(x))=0. Has2distinct real roots then (1) At least one root must be positive (2)f(2)f(1) (3)minimum value of f(x)is negative (4) all of these

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