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16. Suppose a, b, ce R. If f (x) = ar * ...

16. Suppose a, b, ce R. If f (x) = ar * + bx + c is such that a + b + c = 3 and all x is for yER If f (x + y) = f (x) + f (y) + ry, then 2f (n) is equal to: n = 1 (JEE MAIN 2017]

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