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If f: RR^(+) rarr RR ^(+) is a polynomia...

If `f: RR^(+) rarr RR ^(+)` is a polynomial function satisfying the functional equation `f{f(x)}=6x-f(x)`, then `f(17)` is equal to ___

A

17

B

-15

C

34

D

-34

Text Solution

Verified by Experts

The correct Answer is:
b,c
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