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已知f(x)是定义在R上的偶函数,并满足,当1≤x≤2时,f(x)=x-2,则f...
已知f(x)是定义在R上的偶函数,并满足
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,当1≤x≤2时,f(x)=x-2,则f(6.5)=( )
A.4.5
B.-4.5
C.0.5
D.-0.5
考点分析:
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|═( )
A.2
B.
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在等差数列{a
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B.42
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