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数学
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已知函数f(x)=x^-2m^2+m+3(m属于Z)为偶函数,且f(3)
人气:473 ℃ 时间:2019-10-24 02:45:48
解答
解:因为函数f(x)=x^-2m^2+m+3是偶函数
所以-2m^2+m+3为偶数
又f(3)
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