y=f對(duì)稱時(shí),f.特別a=b=0時(shí). f關(guān)于原點(diǎn)對(duì)稱.f(x)為奇函數(shù). 查看更多

 

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若函數(shù)f(x)對(duì)定義域中任意x均滿足f(x)+f(2a-x)=2b,則稱函數(shù)y=f(x)的圖象關(guān)于點(diǎn)(a,b)對(duì)稱.

(1)

已知函數(shù)的圖象關(guān)于點(diǎn)(0,1)對(duì)稱,求實(shí)數(shù)m的值;

(2)

已知函數(shù)g(x)在(-∞,0)Y(0,+∞)上的圖象關(guān)于點(diǎn)(0,1)對(duì)稱,且當(dāng)x∈(0,+∞)時(shí),g(x)=x2+ax+1,求函數(shù)g(x)在(-∞,0)上的解析式;

(3)

在(1)、(2)的條件下,當(dāng)t>0時(shí),若對(duì)實(shí)數(shù)任意x∈(-∞,0),恒有g(shù)(x)<f(t)成立,求實(shí)數(shù)a的取值范圍.

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已知定理:“若a,b為常數(shù),g(x)滿足g(a+x)+g(a-x)=2b,則函數(shù)y=g(x)的圖象關(guān)于點(diǎn)(a,b)中心對(duì)稱”.設(shè)函數(shù),定義域?yàn)?I>A.

(1)試證明y=f(x)的圖象關(guān)于點(diǎn)(a,-1)成中心對(duì)稱;

(2)當(dāng)x∈[a-2,a-1]時(shí),求證:;

(3)對(duì)于給定的x1∈A,設(shè)計(jì)構(gòu)造過(guò)程:x2f(x1),x3f(x2),…,xn+1f(xn).如果x1∈A(i=2,3,4…),構(gòu)造過(guò)程將繼續(xù)下去;如果,構(gòu)造過(guò)程將停止.若對(duì)任意x1∈A,構(gòu)造過(guò)程都可以無(wú)限進(jìn)行下去,求a的值.

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若函數(shù)f(x)對(duì)定義域中任意x均滿足f(x)+f(2a-x)=2b,則稱函數(shù)y=f(x)的圖象關(guān)于點(diǎn)(a,b)對(duì)稱.

(1)已知函數(shù)f(x)=的圖象關(guān)于點(diǎn)(0,1)對(duì)稱,求實(shí)數(shù)m的值;

(2)已知函數(shù)g(x)在(-∞,0)∪(0,+∞)上的圖象關(guān)于點(diǎn)(0,1)對(duì)稱,且當(dāng)x∈(0,+∞)時(shí),g(x)=x2+ax+1,求函數(shù)g(x)在(-∞,0)上的解析式;

(3)在(1)(2)的條件下,當(dāng)t>0時(shí),若對(duì)任意實(shí)數(shù)x∈(-∞,0),恒有g(shù)(x)<f(t)成立,求實(shí)數(shù)a的取值范圍.

 

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若函數(shù)f(x)對(duì)定義域中任意x均滿足f(x)+f(2a-x)=2b,則稱函數(shù)y=f(x)的圖象關(guān)于點(diǎn)(a,b)對(duì)稱.
(1)已知函數(shù)f(x)=的圖象關(guān)于點(diǎn)(0,1)對(duì)稱,求實(shí)數(shù)m的值;
(2)已知函數(shù)g(x)在(-∞,0)∪(0,+∞)上的圖象關(guān)于點(diǎn)(0,1)對(duì)稱,且當(dāng)x∈(0,+∞)時(shí),g(x)=x2+ax+1,求函數(shù)g(x)在(-∞,0)上的解析式;
(3)在(1)(2)的條件下,當(dāng)t>0時(shí),若對(duì)任意實(shí)數(shù)x∈(-∞,0),恒有g(shù)(x)<f(t)成立,求實(shí)數(shù)a的取值范圍.

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若函數(shù)f(x)對(duì)定義域中任意x均滿足f(x)+f(2a-x)=2b,則稱函數(shù)y=f(x)的圖象關(guān)于點(diǎn)(a,b)對(duì)稱.
(1)已知函數(shù)f(x)=的圖象關(guān)于點(diǎn)(0,1)對(duì)稱,求實(shí)數(shù)m的值;
(2)已知函數(shù)g(x)在(-∞,0)∪(0,+∞)上的圖象關(guān)于點(diǎn)(0,1)對(duì)稱,且當(dāng)x∈(0,+∞)時(shí),g(x)=x2+ax+1,求函數(shù)g(x)在(-∞,0)上的解析式;
(3)在(1)(2)的條件下,當(dāng)t>0時(shí),若對(duì)任意實(shí)數(shù)x∈(-∞,0),恒有g(shù)(x)<f(t)成立,求實(shí)數(shù)a的取值范圍.

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