求教:设f(x)满足3f(x)+2f(1/x)=4x,则f(x)= ——.
2个回答
3f(x)+2f(1/x)=4x.(1)
将x换成1/x
3f(1/x)+2f(x)=4/x.(2)
联立,消去f(1/x)可求f(x)
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