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| 1. |
f(x)+f(2x)+f(2-x)+f(1+x)=x ∀ x∈ R, then the value of f(0) is_________ |
| Answer» f(x)+f(2x)+f(2-x)+f(1+x)=x ∀ x∈ R, then the value of f(0) is_________ | |