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函数 http://picflow.koolearn.com/upload/papers/20140824/20140824041806235447.png的定义域为开区间 http://picflow.koolearn.com/upload/papers/20140824/20140824041806251476.png,导函数 http://picflow.koolearn.com/upload/papers/20140824/20140824041806267479.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824041806251476.png内的图像如图所示,则函数 http://picflow.koolearn.com/upload/papers/20140824/20140824041806235447.png在开区间 http://picflow.koolearn.com/upload/papers/20140824/20140824041806251476.png内有极小值点(    ) http://picflow.koolearn.com/upload/papers/20140824/201408240418063292010.png

发布时间:2021-07-16

A.1个

B.http://picflow.koolearn.com/upload/papers/20140824/20140824041806376291.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824041806391287.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824041806391248.png

试卷相关题目

  • 1已知 http://picflow.koolearn.com/upload/papers/20140824/20140824042618962447.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824042618978303.png上的可导函数,且 http://picflow.koolearn.com/upload/papers/20140824/20140824042618993534.png,均有 http://picflow.koolearn.com/upload/papers/20140824/20140824042619009632.png,则以下判断正确的是

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824042619025787.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824042619056779.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824042619071762.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824042619087782.png大小无法确定

    开始考试点击查看答案
  • 2设f(x)是定义在R上以2为周期的偶函数,已知x∈(0,1)时,f(x)=lo http://picflow.koolearn.com/upload/papers/20140824/20140824035642213344.png(1-x),则函数f(x)在(1,2)上(  )

    A.是增函数,且f(x)<0

    B.是增函数,且f(x)>0

    C.是减函数,且f(x)<0

    D.是减函数,且f(x)>0

    开始考试点击查看答案
  • 3http://picflow.koolearn.com/upload/papers/20140824/20140824042955225449.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824042955257409.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824042955272719.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824042955288509.png的大小关系是(     )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824042955319992.png

    B.http://picflow.koolearn.com/upload/papers/20140824/201408240429553351019.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824042955350972.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824042955366996.png

    开始考试点击查看答案
  • 4函数f(x)的定义域是R,f(0)=2,对任意x∈R,f(x)+f′(x)>1,则不等式e x·f(x)>e x+1的解集为(  )

    A.{x|x>0}

    B.{x|x<0}

    C.{x|x<-1或x>1}

    D.{x|x<-1或0<x<1}

    开始考试点击查看答案
  • 5函数 f( x)= xcos x-sin x在下面哪个区间内是增函数 (  )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824040517201781.png

    B.(π,2π)

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824040517216822.png

    D.(2π,3π)

    开始考试点击查看答案
  • 6若函数 http://picflow.koolearn.com/upload/papers/20140824/20140824042250967736.png在区间 http://picflow.koolearn.com/upload/papers/20140824/20140824042250983509.png内是增函数,则实数 http://picflow.koolearn.com/upload/papers/20140824/20140824042250998283.png的取值范围是

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824042251014548.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824042251045531.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824042251061558.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824042251076538.png

    开始考试点击查看答案
  • 7函数f(x)的定义域为(0,+∞),且f(x)>0,f′(x)>0,则函数y=xf(x)(  )

    A.存在极大值

    B.存在极小值

    C.是增函数

    D.是减函数

    开始考试点击查看答案
  • 8已知函数 y= f( x),其导函数 y= f′( x)的图象如图所示,则 y= f( x) (  )  http://picflow.koolearn.com/upload/papers/20140824/201408240343088902410.jpg

    A.在(-∞,0)上为减函数

    B.在x=0处取极小值

    C.在(4,+∞)上为减函数

    D.在x=2处取极大值

    开始考试点击查看答案
  • 9定义在R上的函数 http://picflow.koolearn.com/upload/papers/20140824/20140824034941215447.png满足 http://picflow.koolearn.com/upload/papers/20140824/20140824034941230686.png,且 http://picflow.koolearn.com/upload/papers/20140824/20140824034941246611.png为偶函数,当 http://picflow.koolearn.com/upload/papers/20140824/20140824034941262546.png时,有(  )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824034941293794.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824034941308714.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824034941324782.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824034941340796.png

    开始考试点击查看答案
  • 10设函数f(x)=e x+x-2,g(x)=ln x+x 2-3.若实数a,b满足f(a)=0,g(b)=0,则  (  )

    A.g(a)<0

    B.f(b)<0

    C.0

    D.f(b)开始考试点击查看答案

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