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用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/20140823150749110863.gif时,在验证n=1成立时,左边的项应该是(   )

发布时间:2021-07-12

A.4

B.1

C.2

D.3

试卷相关题目

  • 1某个命题与正整数 http://picflow.koolearn.com/upload/papers/20140823/20140823123409447189.gif有关,若 http://picflow.koolearn.com/upload/papers/20140823/20140823123409462508.gif时该命题成立,那么可推得 http://picflow.koolearn.com/upload/papers/20140823/20140823123409478274.gif时该命题也成立,现在已知当 http://picflow.koolearn.com/upload/papers/20140823/20140823123409509223.gif时该命题不成立,那么可推得

    A.当http://picflow.koolearn.com/upload/papers/20140823/20140823123409556236.gif时,该命题不成立

    B.当http://picflow.koolearn.com/upload/papers/20140823/20140823123409556236.gif时,该命题成立

    C.当http://picflow.koolearn.com/upload/papers/20140823/20140823123409634227.gif时,该命题不成立

    D.当http://picflow.koolearn.com/upload/papers/20140823/20140823123409634227.gif时,该命题成立

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  • 2用数学归纳法证明等式: http://picflow.koolearn.com/upload/papers/20140823/20140823150718924639.gif时,当n=1时的左边等于(    )

    A.4

    B.3

    C.2

    D.1

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  • 3用数学归纳法证明: http://picflow.koolearn.com/upload/papers/20140823/20140823144914519946.gif时,在证明从n=k到n=k+1时,左边增加的项数为(  )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823144914535209.gif+1

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823144914566225.gif

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823144914535209.gif-1

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823144914535209.gif

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  • 4某个命题与正整数 http://picflow.koolearn.com/upload/papers/20140823/20140823122807947189.gif有关,若 http://picflow.koolearn.com/upload/papers/20140823/20140823122807963526.gif时该命题成立,那么可推得 http://picflow.koolearn.com/upload/papers/20140823/20140823122807978376.gif时该命题也成立,现已知 http://picflow.koolearn.com/upload/papers/20140823/20140823122807994225.gif时,该命题不成立,则可以推得(   )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823122808010237.gif时该命题成立

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823122808010237.gif时该命题不成立

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823122808041227.gif时该命题成立

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823122808041227.gif时该命题不成立

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  • 5用数学归纳法证明: http://picflow.koolearn.com/upload/papers/20140823/201408231303122041001.gif,由 http://picflow.koolearn.com/upload/papers/20140823/20140823130312219346.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823130312235390.gif,不等式左端变化的是( )

    A.增加http://picflow.koolearn.com/upload/papers/20140823/20140823130312251359.gif一项

    B.增加http://picflow.koolearn.com/upload/papers/20140823/20140823130312266312.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823130312251359.gif两项

    C.增加http://picflow.koolearn.com/upload/papers/20140823/20140823130312266312.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823130312251359.gif两项,同时减少http://picflow.koolearn.com/upload/papers/20140823/20140823130312344236.gif一项

    D.增加http://picflow.koolearn.com/upload/papers/20140823/20140823130312266312.gif一项,同时减少http://picflow.koolearn.com/upload/papers/20140823/20140823130312344236.gif一项

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  • 6用数学归纳法证明 http://picflow.koolearn.com/upload/papers/20140823/20140823205054875879.png ( http://picflow.koolearn.com/upload/papers/20140823/20140823205054890638.png)时,第一步应验证不等式(    )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823205054921488.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823205054937613.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823205054968616.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823205054984700.png

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  • 7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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  • 8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

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  • 9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

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  • 10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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