題目列表(包括答案和解析)
設(shè)函數(shù)f(x)=ax、g(x)=bx(a>0,b>0,且a≠1,b≠1)的反函數(shù)為f-1(x)、g-1(x),若lga+lgb=0,則y=f-1(x)與y=g-1(x)的圖象是( )
A.關(guān)于直線(xiàn)y=x對(duì)稱(chēng)
B.關(guān)于x軸對(duì)稱(chēng)
C.關(guān)于y軸對(duì)稱(chēng)
D.關(guān)于原點(diǎn)對(duì)稱(chēng)
A.關(guān)于直線(xiàn)y=x對(duì)稱(chēng)
B.關(guān)于x軸對(duì)稱(chēng)
C.關(guān)于y軸對(duì)稱(chēng)
D.關(guān)于原點(diǎn)對(duì)稱(chēng)
設(shè)函數(shù)y=f(x)的反函數(shù)為y=f-1(x),且y=f(2x-1)的圖像過(guò)點(diǎn)(,1),則y=f-1(x)的圖像必過(guò)
A.(,1)
B.(1,)
C.(1,0)
D.(0,1)
設(shè)函數(shù)y=f(x)的反函數(shù)為y=f-1(x),且y=f(2x-1)圖象過(guò)點(diǎn)(,1),則y=f-1(x)圖象必過(guò)點(diǎn)
(,1)
(1,)
(1,0)
(0,1)
設(shè)函數(shù)f(x)=e2(x-1),且f-1(x)為f(x)的反函數(shù),若函數(shù)g(x)=,則g[g(-1)]=________.
一、選擇題(本大題共12個(gè)小題,每小題5分,共60分)
1―5 BCBAB 6―10 CDBDD 11―12AB
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