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    于是. 當(dāng)時(shí).. 查看更多

     

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    當(dāng)時(shí),函數(shù)的值恒大于1,則實(shí)數(shù)的取值范圍是          .

     

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    當(dāng)時(shí),函數(shù)的值恒大于1,則實(shí)數(shù)的取值范圍是          .

     

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    當(dāng)時(shí),函數(shù)f(x)=Asin(x+φ)(A>0)取得最小值,則函數(shù)是( )
    A.奇函數(shù)且圖象關(guān)于點(diǎn)對(duì)稱
    B.偶函數(shù)且圖象關(guān)于點(diǎn)(π,0)對(duì)稱
    C.奇函數(shù)且圖象關(guān)于直線對(duì)稱
    D.偶函數(shù)且圖象關(guān)于點(diǎn)對(duì)稱

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    當(dāng)時(shí),函數(shù)f(x)=Asin(x+φ)(A>0)取得最小值,則函數(shù)是( )
    A.奇函數(shù)且圖象關(guān)于點(diǎn)對(duì)稱
    B.偶函數(shù)且圖象關(guān)于點(diǎn)(π,0)對(duì)稱
    C.奇函數(shù)且圖象關(guān)于直線對(duì)稱
    D.偶函數(shù)且圖象關(guān)于點(diǎn)對(duì)稱

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    當(dāng)時(shí),函數(shù)f(x)=Asin(x+φ)(A>0)取得最小值,則函數(shù)是( )
    A.奇函數(shù)且圖象關(guān)于點(diǎn)對(duì)稱
    B.偶函數(shù)且圖象關(guān)于點(diǎn)(π,0)對(duì)稱
    C.奇函數(shù)且圖象關(guān)于直線對(duì)稱
    D.偶函數(shù)且圖象關(guān)于點(diǎn)對(duì)稱

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