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若函数 http://picflow.koolearn.com/upload/papers/20140824/20140824052621742847.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824052621757514.png上单调递减,则实数 http://picflow.koolearn.com/upload/papers/20140824/20140824052621773311.png的取值范围为(   )

发布时间:2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140824/20140824052621789437.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824052621804413.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824052621820446.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824052621835447.png

试卷相关题目

  • 1设f(x)=- http://picflow.koolearn.com/upload/papers/20140824/20140824052727012327.pngx 3+ http://picflow.koolearn.com/upload/papers/20140824/20140824052727028338.pngx 2+2ax,若f(x)在( http://picflow.koolearn.com/upload/papers/20140824/20140824052727059382.png,+∞)上存在单调递增区间,则实数a的取值范围为(  )

    A.a>-http://picflow.koolearn.com/upload/papers/20140824/20140824052727075330.png

    B.a<-http://picflow.koolearn.com/upload/papers/20140824/20140824052727075330.png

    C.a>http://picflow.koolearn.com/upload/papers/20140824/20140824052727075330.png

    D.不存在

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  • 2函数 http://picflow.koolearn.com/upload/papers/20140824/20140824045456322487.png,函数 http://picflow.koolearn.com/upload/papers/20140824/20140824045456338361.png,它们的定义域均为 http://picflow.koolearn.com/upload/papers/20140824/20140824045456354261.png,并且函数 http://picflow.koolearn.com/upload/papers/20140824/20140824045456369234.png的图像始终在函数 http://picflow.koolearn.com/upload/papers/20140824/20140824045456385240.png的上方,那么 http://picflow.koolearn.com/upload/papers/20140824/20140824045456385146.png的取值范围是(   )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824045456400272.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824045456416256.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824045456432365.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824045456447338.png

    开始考试点击查看答案
  • 3函数 http://picflow.koolearn.com/upload/papers/20140824/20140824050633269695.png是减函数的区间为 (     )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824050633285552.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824050633301548.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824050633316517.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824050633332477.png

    开始考试点击查看答案
  • 4函数 http://picflow.koolearn.com/upload/papers/20140824/20140824052053751447.png的导函数 http://picflow.koolearn.com/upload/papers/20140824/20140824052053767481.png的图像如图所示,则(   ) http://picflow.koolearn.com/upload/papers/20140824/201408240520537983089.png

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824052053814443.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824052053751447.png的极大值点

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824052053845392.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824052053751447.png的极大值点

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824052053876383.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824052053751447.png的极大值点

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824052053923367.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824052053751447.png的极小值点

    开始考试点击查看答案
  • 5函数 http://picflow.koolearn.com/upload/papers/20140824/20140824052549887727.png,若对于区间[-3,2]上的任意x 1,x 2,都有|f(x 1)-f(x 2)|≤t,则实数t的最小值是(   )

    A.20

    B.18

    C.3

    D.1

    开始考试点击查看答案
  • 6函数 http://picflow.koolearn.com/upload/papers/20140824/20140824052909536738.png的递增区间是(    )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824052909551581.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824052909567816.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824052909598613.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824052909614790.png

    开始考试点击查看答案
  • 7函数f(x)=1+x- http://picflow.koolearn.com/upload/papers/20140824/20140824052549450403.png在(0,2π)上是(  )

    A.增函数

    B.在(0,π)上递增,在(π,2π)上递减

    C.减函数

    D.在(0,π)上递减,在(0,2π)上递增

    开始考试点击查看答案
  • 8设函数f(x)满足x 2f′(x)+2xf(x)= http://picflow.koolearn.com/upload/papers/20140824/20140824050519871422.png,f(2)= http://picflow.koolearn.com/upload/papers/20140824/20140824050519887451.png,则x>0时,f(x)(  )

    A.有极大值,无极小值

    B.有极小值,无极大值

    C.既有极大值又有极小值

    D.既无极大值也无极小值

    开始考试点击查看答案
  • 9函数 http://picflow.koolearn.com/upload/papers/20140824/20140824050724593641.png在区间 http://picflow.koolearn.com/upload/papers/20140824/20140824050724609419.png上(    )

    A.有最大值,但无最小值

    B.有最大值,也有最小值

    C.无最大值,但有最小值

    D.既无最大值,也无最小值.

    开始考试点击查看答案
  • 10f(x)=x 3﹣3x 2+2在区间[﹣1,1]上的最大值是(  )

    A.﹣2

    B.1

    C.2

    D.4

    开始考试点击查看答案
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