若函數(shù)

為定義在R上的奇函數(shù),且在(0,+

為增函數(shù),又


,則不等式

的解集為
試題分析:因為函數(shù)

在

為增函數(shù),且

,所以當(dāng)

時

,當(dāng)

時

,又函數(shù)

為

上的奇函數(shù),所以函數(shù)

在

上亦為增函數(shù),且當(dāng)

時

,當(dāng)

時

,又由

,所以不等式

,故所求不等式的解集為

.所以正確答案為D.
練習(xí)冊系列答案
相關(guān)習(xí)題
科目:高中數(shù)學(xué)
來源:不詳
題型:解答題
在邊長為10的正方形

內(nèi)有一動點

,

,作

于

,

于

,求矩形

面積的最小值和最大值,并指出取最大值時

的具體位置.

查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
函數(shù)

在

上是增函數(shù),則實數(shù)

的范圍是( )
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:填空題
設(shè)函數(shù)f(x)=

的最大值為

,最小值為

,
那么
.
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

,

,

,那么將這三個數(shù)從大到小排列為____.
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:填空題
已知函數(shù)


,設(shè)

,若

,則

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:單選題
下列函數(shù)中既是偶函數(shù)又在(0,+∞)上是增函數(shù)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
設(shè)函數(shù)

的定義域為R,若存在常數(shù)m>0,使

對一切實數(shù)x均成立,則稱

為F函數(shù).給出下列函數(shù):
①

;②

;③

;④

;
⑤

是定義在R上的奇函數(shù),且滿足對一切實數(shù)x
1、x
2均有

.其中是F函數(shù)的序號為______.
查看答案和解析>>
科目:高中數(shù)學(xué)
來源:不詳
題型:單選題
若函數(shù)

在

上單調(diào)遞增,則實數(shù)

的取值范圍是( )
查看答案和解析>>