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用数学归纳法证明“ http://picflow.koolearn.com/upload/papers/20140823/201408231742548541117.gif”时, 由 http://picflow.koolearn.com/upload/papers/20140823/20140823174254869348.gif的假设证明 http://picflow.koolearn.com/upload/papers/20140823/20140823174254885382.gif时,如果从等式左边证明右边,则必须证得右边为(   )

发布时间:2021-07-12

A.http://picflow.koolearn.com/upload/papers/20140823/20140823174255010572.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823174255041703.gifhttp://picflow.koolearn.com/upload/papers/20140823/2014082317425505665.gif

C.http://picflow.koolearn.com/upload/papers/20140823/20140823174255072572.gif

D.http://picflow.koolearn.com/upload/papers/20140823/20140823174255088615.gif

试卷相关题目

  • 1用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/201408232121493121130.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823212149359520.png)时,从“ http://picflow.koolearn.com/upload/papers/20140823/20140823212149375412.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823212149593466.png”左边需增乘的代数式为(  )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823212149812442.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823212149827562.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823212149843540.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823212149968580.png

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  • 2已知 f( n)=(2 n+7)·3 n+9,存在自然数 m,使得对任意 n∈N,都能使 m整除 f( n),则最大的 m的值为(    )

    A.30

    B.26

    C.36

    D.6

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  • 3用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/201408231756595171382.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823175659533409.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823175659548468.png时,不等式左边应添加的项是(  )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823175659564593.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823175659580640.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823175659595768.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823175659642803.png

    开始考试点击查看答案
  • 4用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/201408232116434431181.png时,假设n=k时命题成立,则当n=k+1时,左端增加的项数是(  )

    A.1项

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823211643458370.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823211643489315.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823211643505366.png

    开始考试点击查看答案
  • 5用数学归纳法证明“当 http://picflow.koolearn.com/upload/papers/20140823/20140823184119883304.png为正奇数时, http://picflow.koolearn.com/upload/papers/20140823/20140823184120039514.png能被 http://picflow.koolearn.com/upload/papers/20140823/20140823184120242414.png整除”,第二步归纳假设应该写成(   )

    A.假设当http://picflow.koolearn.com/upload/papers/20140823/20140823184120398764.png时,http://picflow.koolearn.com/upload/papers/20140823/20140823184120414518.png能被http://picflow.koolearn.com/upload/papers/20140823/20140823184120242414.png整除

    B.假设当http://picflow.koolearn.com/upload/papers/20140823/20140823184120461830.png时,http://picflow.koolearn.com/upload/papers/20140823/20140823184120414518.png能被http://picflow.koolearn.com/upload/papers/20140823/20140823184120242414.png整除

    C.假设当http://picflow.koolearn.com/upload/papers/20140823/20140823184120507858.png时,http://picflow.koolearn.com/upload/papers/20140823/20140823184120414518.png能被http://picflow.koolearn.com/upload/papers/20140823/20140823184120242414.png整除

    D.假设当http://picflow.koolearn.com/upload/papers/20140823/20140823184120570854.png时,http://picflow.koolearn.com/upload/papers/20140823/20140823184120570615.png能被http://picflow.koolearn.com/upload/papers/20140823/20140823184120242414.png整除

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  • 6用数学归纳法证明等式 http://picflow.koolearn.com/upload/papers/20140823/201408232115229931619.png时,验证 http://picflow.koolearn.com/upload/papers/20140823/20140823211523009357.png,左边应取的项是 (  )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823211523024291.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823211523040501.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823211523056573.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823211523087648.png

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  • 7.用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/20140823180449874988.png时,由k到k+1,不等式左端的变化是(    )

    A.增加http://picflow.koolearn.com/upload/papers/20140823/20140823180449998610.png

    B.增加http://picflow.koolearn.com/upload/papers/20140823/20140823180450014505.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823180450030534.png两项

    C.增加http://picflow.koolearn.com/upload/papers/20140823/20140823180450014505.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823180450030534.png两项且减少http://picflow.koolearn.com/upload/papers/20140823/20140823180450279434.png一项

    D.以上结论均错

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  • 8http://picflow.koolearn.com/upload/papers/20140823/20140823195307098464.png是定义在正整数集上的函数,且 http://picflow.koolearn.com/upload/papers/20140823/20140823195307098464.png满足:“当 http://picflow.koolearn.com/upload/papers/20140823/20140823195307301591.png成立时,总可推出 http://picflow.koolearn.com/upload/papers/20140823/20140823195307316754.png成立”. 那么,下列命题总成立的是(  )

    A.若http://picflow.koolearn.com/upload/papers/20140823/20140823195307394489.png成立,则http://picflow.koolearn.com/upload/papers/20140823/20140823195307425603.png成立;

    B.若http://picflow.koolearn.com/upload/papers/20140823/20140823195307457564.png成立,则http://picflow.koolearn.com/upload/papers/20140823/20140823195307519491.png成立;

    C.若http://picflow.koolearn.com/upload/papers/20140823/20140823195307706565.png成立,则当http://picflow.koolearn.com/upload/papers/20140823/20140823195307909400.png时,均有http://picflow.koolearn.com/upload/papers/20140823/20140823195308127602.png成立;

    D.若http://picflow.koolearn.com/upload/papers/20140823/20140823195308143609.png成立,则当http://picflow.koolearn.com/upload/papers/20140823/20140823195308159442.png时,均有http://picflow.koolearn.com/upload/papers/20140823/20140823195308127602.png成立

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  • 9在用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/201408232248066341453.png时,在验证当 http://picflow.koolearn.com/upload/papers/20140823/20140823224806649341.png时,等式左边为(  )

    A.1

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823224806665348.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823224806759464.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823224806790569.png

    开始考试点击查看答案
  • 10利用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/201408232212314421713.png  时,从“ http://picflow.koolearn.com/upload/papers/20140823/20140823221231458412.png”变到“ http://picflow.koolearn.com/upload/papers/20140823/20140823221231474466.png”时,左边应增乘的因式是

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823221231505442.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823221231598541.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823221231614581.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823221231645799.png

    开始考试点击查看答案
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