f(x)满足f(x)+2f(1/x)=3x,则f(x)=_______
f(x)满足f(x)+2f(1/x)=3x,则f(x)=_______
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已知f(x)满足2f(x)+f(1/x)=3x,求f(x)
已知f(x)满足2f(x)+f(1/x)=3x,求f(x)?
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已知f(x)满足2f(x)+f(1/x)=3x,则f(x)=
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