题目内容
已知函数f(x)=kx+
(k∈R),f(lg2)=4,则f(lg
)=______.
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∵函数f(x)=kx+
(k∈R),∴f(-x)=-kx-
=-f(x),
f(lg
)=f(-lg2)=-f(lg2),∴f(lg
)=-4
故答案为-4
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f(lg
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故答案为-4
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