設(shè)函數(shù)

的定義域?yàn)镈,若對(duì)于任意的

,存在唯一的

,使

(c為常數(shù))成立,則稱函數(shù)

在D上的均值為c,給出下列四個(gè)函數(shù):①

②

③

④

,則滿足其定義域上均值為2的所有函數(shù)的序號(hào)為
。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題
科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
定義在

上的函數(shù)

滿足

當(dāng)

時(shí),

則下列不等式一定成立的是 ( )
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:解答題
(本小題滿分12分)
設(shè)

是定義域?yàn)?img src="http://thumb.zyjl.cn/pic2/upload/papers/20140823/20140823162438793601.gif" style="vertical-align:middle;" />的奇函數(shù),且它在區(qū)間

上單調(diào)增.
(1)用定義證明:

在

上的單調(diào)性;
(2)若

且

試判斷

的符號(hào);
(3)若

解關(guān)于

的不等式

.
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:解答題
(本小題滿分10分)
設(shè)函數(shù)

(1)當(dāng)

時(shí),求函數(shù)

的定義域;
(2)若函數(shù)

的定義域?yàn)?i>R,試求

的取值范圍.
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
定義在

上的偶函數(shù)

滿足

,當(dāng)

時(shí),

,則下列錯(cuò)誤的是
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:填空題
若二次函數(shù)

滿足

且

,則實(shí)數(shù)

的取值范圍是____。
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:填空題
已知

,若

,則
x = ___________
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
已知函數(shù)
f (
x)=

則
f (0)+
f (

1)=
A.9 | B. | C.3 | D. |
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
已知函數(shù)定義域?yàn)镈的函數(shù)f(x),如果對(duì)x

D,存在正數(shù)k,有|f(x)|≤k|x|成立,則稱函數(shù)f(x)是D上的“倍約束函數(shù)”,已知下列函數(shù):(1)f(x)=2x; (2)f(x)=Sin(x+

);(3)f(x)=

;(4)f(x)=

;其中是“倍約束函數(shù)”的是( )
A.(1)(3)(4) | B.(1)(2) | C.(3)(4) | D.(2)(3)(4) |
查看答案和解析>>