位置:首页 > 题库频道 > 学历类 > 升学考试 > 高中(高考) > 数学(文科) > 高中数学代数与函数一其他练习题851

函数 http://picflow.koolearn.com/upload/papers/20140823/20140823122735562402.gif的递增区间是(   )

发布时间:2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140823/20140823122735577422.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823122735593397.gif

C.http://picflow.koolearn.com/upload/papers/20140823/20140823122735671426.gif

D.http://picflow.koolearn.com/upload/papers/20140823/20140823122735686391.gif

试卷相关题目

  • 1http://picflow.koolearn.com/upload/papers/20140823/20140823121307701658.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823121307717420.gif为增函数,则(        )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823121307732456.gif

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823121307748331.gif

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823121307748327.gif

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823121307826441.gif

    开始考试点击查看答案
  • 2函数 http://picflow.koolearn.com/upload/papers/20140823/20140823121123087353.gif的增区间为(       )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823121123087204.gif

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823121123103288.gif

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823121123118432.gif

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823121123134426.gif

    开始考试点击查看答案
  • 3设函数f(x)在R上的导函数为f′(x),且2f(x)+xf′(x)<0,下面的不等式在R上恒成立的是(  )

    A.f(x)>0

    B.f(x)<0

    C.f(x)>x

    D.f(x)<x

    开始考试点击查看答案
  • 4设f′(x)是函数f(x)的导函数,如果函数y=f′(x)的图象如图所示,那么下列结论一定正确的是(  )

    A.当x∈(0,1)时,f(x)>0

    B.当x∈(0,1)时,f(x)<0

    C.函数f(x)在区间(1,+∞)内单调递减

    D.函数f(x)在区间(-∞,0)内单调递增 http://picflow.koolearn.com/upload/papers/20140611/201406111324292583518.png

    开始考试点击查看答案
  • 5f(x)的导函数图象如图所示,则f(x)的增区间为(  )

    A.[0,1]

    B.(-∞,-1]

    C.(-∞,0]

    D.[0,+∞) http://picflow.koolearn.com/upload/papers/20140611/201406111424105102137.png

    开始考试点击查看答案
  • 6.函数 y= x 5- x 3-2 x,则下列判断正确的是

    A.在区间(-1,1)内函数为增函数

    B.在区间(-∞,-1)内函数为减函数

    C.在区间(-∞,1)内函数为减函数

    D.在区间(1,+∞)内函数为增函数

    开始考试点击查看答案
  • 7http://picflow.koolearn.com/upload/papers/20140823/20140823134729606332.jpg12http://picflow.koolearn.com/upload/papers/20140823/20140823134729637270.gif是定义在 http://picflow.koolearn.com/upload/papers/20140823/20140823134729653410.gif上的非负可导函数,且满足 http://picflow.koolearn.com/upload/papers/20140823/20140823134729684574.gif,对任意正数 http://picflow.koolearn.com/upload/papers/20140823/20140823134729700192.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823134729809197.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823134729824248.gif,则必有 http://picflow.koolearn.com/upload/papers/20140823/20140823134729606332.jpg

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823134729840454.gif

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823134729871445.gif http://picflow.koolearn.com/upload/papers/20140823/20140823134729606332.jpg

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823134729902432.gif

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823134729996426.gif

    开始考试点击查看答案
  • 8.已知函数 y=2 x 3+ ax 2+36 x-24在 x=2处有极值,则该函数的一个递增区间是

    A.(2,3)

    B.(3,+∞)

    C.(2,+∞)

    D.(-∞,3)

    开始考试点击查看答案
  • 9.已知函数 f( x)=3 x 3-5 x+1,则 f′( x)是

    A.奇函数

    B.偶函数

    C.非奇非偶函数

    D.既奇又偶函数

    开始考试点击查看答案
  • 10函数 y= x 3+ x的单调增区间为

    A.(-∞,+∞)

    B.(0,+∞)

    C.(-∞,0)

    D.不存在

    开始考试点击查看答案
返回顶部