1.數(shù)列an的通項(xiàng)公式為an=n+b\n,若對(duì)任意的n∈N*,都有an≥a5,則實(shí)數(shù)b的取值范圍是?

1.數(shù)列an的通項(xiàng)公式為an=n+b\n,若對(duì)任意的n∈N*,都有an≥a5,則實(shí)數(shù)b的取值范圍是?
2.定義域?yàn)镽的奇函數(shù)f(x)的圖像關(guān)于直線x=1對(duì)稱(chēng),當(dāng)x屬于[0.1]時(shí),f(x)=x,方程f(x)=log2013x（2013是下標(biāo)）實(shí)數(shù)根的個(gè)數(shù)為 A.1006B.1007 C.2012 D.2014
3.已知函數(shù)f(x)的圖像關(guān)于h(x)=x+1\x+2的圖像關(guān)于點(diǎn)A（0,1）對(duì)稱(chēng),求f(x)的解析式

數(shù)學(xué)人氣：373 ℃時(shí)間：2020-05-31 01:37:53

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