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已知函数 http://picflow.koolearn.com/upload/papers/20140824/20140824032112637495.png的定义域为 http://picflow.koolearn.com/upload/papers/20140824/20140824032112637379.png,部分对应值如下表, http://picflow.koolearn.com/upload/papers/20140824/201408240321126691795.png http://picflow.koolearn.com/upload/papers/20140824/20140824032112637495.png的导函数 http://picflow.koolearn.com/upload/papers/20140824/20140824032112700623.png的图象如图所示. http://picflow.koolearn.com/upload/papers/20140824/201408240321127152084.png 下列关于 http://picflow.koolearn.com/upload/papers/20140824/20140824032112637495.png的命题: ①函数 http://picflow.koolearn.com/upload/papers/20140824/20140824032112637495.png的极大值点为 http://picflow.koolearn.com/upload/papers/20140824/20140824032112747262.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824032112762248.png; ②函数 http://picflow.koolearn.com/upload/papers/20140824/20140824032112637495.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824032112793430.png上是减函数; ③如果当 http://picflow.koolearn.com/upload/papers/20140824/20140824032112809524.png时, http://picflow.koolearn.com/upload/papers/20140824/20140824032112637495.png的最大值是2,那么 http://picflow.koolearn.com/upload/papers/20140824/20140824032112825267.png的最大值为4; ④函数 http://picflow.koolearn.com/upload/papers/20140824/20140824032112840600.png最多有2个零点. 其中正确命题的序号是     (       )

发布时间:2021-07-16

A.①②

B.③④

C.①②④

D.②③④.

试卷相关题目

  • 1设函数 http://picflow.koolearn.com/upload/papers/20140824/20140824021621320447.png的导函数为 http://picflow.koolearn.com/upload/papers/20140824/20140824021621335466.png,对任意 http://picflow.koolearn.com/upload/papers/20140824/20140824021621335433.png都有 http://picflow.koolearn.com/upload/papers/20140824/20140824021621351618.png成立,则(  )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824021621367771.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824021621382744.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824021621398787.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824021621491597.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824021621507590.png的大小不确定

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  • 2已知不等式 http://picflow.koolearn.com/upload/papers/20140824/20140824024422847685.png的解集 http://picflow.koolearn.com/upload/papers/20140824/20140824024422862396.png,则函数 http://picflow.koolearn.com/upload/papers/20140824/201408240244228781138.png单调递增区间为(    )

    A.(-http://picflow.koolearn.com/upload/papers/20140824/20140824024422894639.png

    B.(-1,3)

    C.( -3,1)

    D.(http://picflow.koolearn.com/upload/papers/20140824/20140824024422894635.png

    开始考试点击查看答案
  • 3可导函数 http://picflow.koolearn.com/upload/papers/20140824/20140824033140149452.png的导函数为 http://picflow.koolearn.com/upload/papers/20140824/20140824033140149454.png,且满足:① http://picflow.koolearn.com/upload/papers/20140824/20140824033140164672.png;② http://picflow.koolearn.com/upload/papers/20140824/20140824033140180717.png,记 http://picflow.koolearn.com/upload/papers/20140824/20140824033140195587.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824033140211645.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824033140227577.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824033140258434.png的大小顺序为(  )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824033140273462.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824033140289457.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824033140289461.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824033140305461.png

    开始考试点击查看答案
  • 4已知 http://picflow.koolearn.com/upload/papers/20140824/20140824023502041464.png为定义在 http://picflow.koolearn.com/upload/papers/20140824/20140824023502057529.png上的可导函数, http://picflow.koolearn.com/upload/papers/20140824/20140824023502073635.png对于 http://picflow.koolearn.com/upload/papers/20140824/20140824023502088437.png恒成立,且 http://picflow.koolearn.com/upload/papers/20140824/20140824023502104267.png为自然对数的底数,则(    )

    A.http://picflow.koolearn.com/upload/papers/20140824/201408240235021191159.png

    B.http://picflow.koolearn.com/upload/papers/20140824/201408240235021351065.png

    C.http://picflow.koolearn.com/upload/papers/20140824/201408240235021511092.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824023502166831.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824023502182809.png的大小不能确定

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  • 5已知函数 http://picflow.koolearn.com/upload/papers/20140824/20140824030856847680.png,若 http://picflow.koolearn.com/upload/papers/20140824/20140824030856862490.png,且 http://picflow.koolearn.com/upload/papers/20140824/20140824030856878619.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824030856893412.png的最小值是(  )

    A.-16

    B.-12

    C.-10

    D.-8

    开始考试点击查看答案
  • 6已知函数 http://picflow.koolearn.com/upload/papers/20140824/20140824023406521447.png满足 http://picflow.koolearn.com/upload/papers/20140824/20140824023406536653.png,且当 http://picflow.koolearn.com/upload/papers/20140824/20140824023406552717.png时, http://picflow.koolearn.com/upload/papers/20140824/20140824023406583720.png,则(     )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824023406614738.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824023406630732.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824023406661739.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824023406661739.png

    开始考试点击查看答案
  • 7若关于x的不等式 http://picflow.koolearn.com/upload/papers/20140824/20140824024415359618.png的解集为 http://picflow.koolearn.com/upload/papers/20140824/20140824024415374624.png,且函数 http://picflow.koolearn.com/upload/papers/20140824/20140824024415390963.png在区间 http://picflow.koolearn.com/upload/papers/20140824/20140824024415406505.png上不是单调函数,则实数 http://picflow.koolearn.com/upload/papers/20140824/20140824024415484337.png的取值范围为 (   )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824024415499520.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824024415515462.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824024415562840.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824024415577840.png

    开始考试点击查看答案
  • 8没函数 http://picflow.koolearn.com/upload/papers/20140824/20140824032530833573.png在(0,+ http://picflow.koolearn.com/upload/papers/20140824/20140824032530849313.png)内有定义,对于给定的正数K,定义函数 http://picflow.koolearn.com/upload/papers/20140824/201408240325308801297.png,取函数 http://picflow.koolearn.com/upload/papers/20140824/20140824032530896758.png,恒有 http://picflow.koolearn.com/upload/papers/20140824/20140824032530911650.png,则

    A.K的最大值为http://picflow.koolearn.com/upload/papers/20140824/20140824032530927301.png

    B.K的最小值为http://picflow.koolearn.com/upload/papers/20140824/20140824032530927301.png

    C.K的最大值为2

    D.K的最小值为2

    开始考试点击查看答案
  • 9已知 http://picflow.koolearn.com/upload/papers/20140824/20140824021523475630.png都是定义在 http://picflow.koolearn.com/upload/papers/20140824/20140824021523490279.png上的函数, http://picflow.koolearn.com/upload/papers/20140824/20140824021523522587.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824021523537850.pnghttp://picflow.koolearn.com/upload/papers/20140824/201408240215235681062.pnghttp://picflow.koolearn.com/upload/papers/20140824/201408240215235841110.png,在有穷数列 http://picflow.koolearn.com/upload/papers/20140824/201408240215236001334.png中,任意取正整数 http://picflow.koolearn.com/upload/papers/20140824/20140824021523646650.png,则前 http://picflow.koolearn.com/upload/papers/20140824/20140824021523678312.png项和大于 http://picflow.koolearn.com/upload/papers/20140824/20140824021523693420.png的概率是 (    )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824021523709308.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824021523724370.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824021523740369.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824021523756346.png

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  • 10若幂函数f(x)的图象过点( http://picflow.koolearn.com/upload/papers/20140824/20140824025116341413.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824025116357338.png),则函数g(x)= http://picflow.koolearn.com/upload/papers/20140824/20140824025116372322.pngf(x)的单调递减区间为(   )

    A.(-∞,0)

    B.(-∞,-2)

    C.(-2,-1)

    D.(-2,0)

    开始考试点击查看答案
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