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等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020655678402.png中的 http://picflow.koolearn.com/upload/papers/20140824/20140824020655694284.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824020655710386.png是函数 http://picflow.koolearn.com/upload/papers/20140824/20140824020655710816.png的极值点,则 http://picflow.koolearn.com/upload/papers/20140824/20140824020655741537.png(   )

发布时间:2021-09-28

A.http://picflow.koolearn.com/upload/papers/20140824/20140824020655756273.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824020655772249.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824020655788235.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824020655819265.png

试卷相关题目

  • 1数列{a n}中,a 1=1,对于所有的n≥2,n∈N *都有a 1·a 2·a 3·…·a n=n 2,则a 3+a 5等于  (  ) .

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824015239502427.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824015239533459.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824015239549484.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824015239564404.png

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  • 2设数列 http://picflow.koolearn.com/upload/papers/20140824/20140824015321731461.png是等差数列,其前 http://picflow.koolearn.com/upload/papers/20140824/20140824015321747281.png项和为 http://picflow.koolearn.com/upload/papers/20140824/20140824015321763351.png,若 http://picflow.koolearn.com/upload/papers/20140824/20140824015321778452.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824015321794487.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824015321809361.png(    )

    A.31

    B.32

    C.33

    D.34

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  • 3等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020255064449.png的前 http://picflow.koolearn.com/upload/papers/20140824/20140824020255173276.png项和为 http://picflow.koolearn.com/upload/papers/20140824/20140824020255188345.png,若 http://picflow.koolearn.com/upload/papers/20140824/20140824020255220440.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824020255235464.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824020255251375.png等于(  )

    A.12

    B.18

    C.24

    D.42

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  • 4等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824015027838456.png的前 http://picflow.koolearn.com/upload/papers/20140824/20140824015027838297.png项和为 http://picflow.koolearn.com/upload/papers/20140824/201408240150278531012.png的值(  )  

    A.18

    B.20

    C.21

    D.22

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  • 5等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020058672456.png的前 http://picflow.koolearn.com/upload/papers/20140824/20140824020058672297.png项和为 http://picflow.koolearn.com/upload/papers/20140824/20140824020058687388.png,若 http://picflow.koolearn.com/upload/papers/20140824/20140824020058703680.png则当 http://picflow.koolearn.com/upload/papers/20140824/20140824020058687388.png取最小值时, http://picflow.koolearn.com/upload/papers/20140824/20140824020058734314.png(   )

    A.6

    B.7

    C.8

    D.9

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  • 6已知等比数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020123257477.png的首项 http://picflow.koolearn.com/upload/papers/20140824/20140824020123273371.png,公比 http://picflow.koolearn.com/upload/papers/20140824/20140824020123273410.png,等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020123289494.png的首项 http://picflow.koolearn.com/upload/papers/20140824/20140824020123304431.png,公差 http://picflow.koolearn.com/upload/papers/20140824/20140824020123320422.png,在 http://picflow.koolearn.com/upload/papers/20140824/20140824020123257477.png中插入 http://picflow.koolearn.com/upload/papers/20140824/20140824020123289494.png中的项后从小到大构成新数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020123367453.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824020123367453.png的第100项为(  )

    A.270

    B.273

    C.276

    D.279

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  • 7等差数列 http://picflow.koolearn.com/upload/papers/20140824/201408240153156631241.png为一个确定的常数,则下列各个前 http://picflow.koolearn.com/upload/papers/20140824/20140824015315679298.png项和中,也为确定的常数的是(   )

    A.S6

    B.S11

    C.S12

    D.S13

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  • 8已知等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824014838684470.png的公差为2,若 http://picflow.koolearn.com/upload/papers/20140824/20140824014838700490.png成等比数列,则 http://picflow.koolearn.com/upload/papers/20140824/20140824014838716348.png=(   )

    A.http://picflow.koolearn.com/upload/papers/20140824/20140824014838747259.png

    B.http://picflow.koolearn.com/upload/papers/20140824/20140824014838762305.png

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824014838794322.png

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824014838809318.png

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  • 9已知等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020514965480.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824020514980585.png,则前10项和 http://picflow.koolearn.com/upload/papers/20140824/20140824020514996410.png(  )

    A.420

    B.380

    C.210

    D.140

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  • 10若数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020736519454.png满足:存在正整数 http://picflow.koolearn.com/upload/papers/20140824/20140824020736535284.png,对于任意正整数 http://picflow.koolearn.com/upload/papers/20140824/20140824020736550277.png都有 http://picflow.koolearn.com/upload/papers/20140824/20140824020736582485.png成立,则称数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020736519454.png为周期数列,周期为 http://picflow.koolearn.com/upload/papers/20140824/20140824020736535284.png. 已知数列 http://picflow.koolearn.com/upload/papers/20140824/20140824020736519454.png满足 http://picflow.koolearn.com/upload/papers/20140824/20140824020736628660.pnghttp://picflow.koolearn.com/upload/papers/20140824/201408240207366601233.png 则下列结论中错误的是(    )

    A.若http://picflow.koolearn.com/upload/papers/20140824/20140824020736660425.png,则http://picflow.koolearn.com/upload/papers/20140824/20140824020736675333.png可以取3个不同的值

    B.若http://picflow.koolearn.com/upload/papers/20140824/20140824020736691485.png,则数列http://picflow.koolearn.com/upload/papers/20140824/20140824020736519454.png是周期为http://picflow.koolearn.com/upload/papers/20140824/20140824020736722270.png的数列

    C.http://picflow.koolearn.com/upload/papers/20140824/20140824020736738532.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824020736753409.png,存在http://picflow.koolearn.com/upload/papers/20140824/20140824020736753407.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824020736769466.png是周期为http://picflow.koolearn.com/upload/papers/20140824/20140824020736535284.png的数列

    D.http://picflow.koolearn.com/upload/papers/20140824/20140824020736800493.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824020736816463.png,数列http://picflow.koolearn.com/upload/papers/20140824/20140824020736769466.png是周期数列

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