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已知函数y =" f" (x) 和y =" g" (x) 的定义域及值域均为 http://picflow.koolearn.com/upload/papers/20140823/20140823190726781709.png,其图像如图所示,则方程 http://picflow.koolearn.com/upload/papers/20140823/20140823190726797639.png根的个数为(   ) http://picflow.koolearn.com/upload/papers/20140823/201408231907268132846.png

发布时间:2021-08-04

A.2

B.3

C.5

D.6

试卷相关题目

  • 1若直线 http://picflow.koolearn.com/upload/papers/20140823/20140823192740542493.png与曲线 http://picflow.koolearn.com/upload/papers/20140823/20140823192740557718.png有公共点,则 http://picflow.koolearn.com/upload/papers/20140823/20140823192740573271.png的取值范围是(    )

    A.[http://picflow.koolearn.com/upload/papers/20140823/20140823192740713451.png,3]

    B.[http://picflow.koolearn.com/upload/papers/20140823/20140823192740713451.png,http://picflow.koolearn.com/upload/papers/20140823/20140823192740744454.png]

    C.[http://picflow.koolearn.com/upload/papers/20140823/20140823192740760410.png,3]

    D.[-1,http://picflow.koolearn.com/upload/papers/20140823/20140823192740744454.png]

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  • 2若函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191343616562.png在区间 http://picflow.koolearn.com/upload/papers/20140823/20140823191343631432.png上的图象为连续不断的曲线,则下列说法正确的是( )

    A.若 http://picflow.koolearn.com/upload/papers/20140823/20140823191343647684.png,不存在实数 http://picflow.koolearn.com/upload/papers/20140823/20140823191343662564.png使得 http://picflow.koolearn.com/upload/papers/20140823/20140823191343678486.png

    B.若 http://picflow.koolearn.com/upload/papers/20140823/20140823191343694676.png,存在且只存在一个实数 http://picflow.koolearn.com/upload/papers/20140823/20140823191343662564.png使得 http://picflow.koolearn.com/upload/papers/20140823/20140823191343678486.png

    C.若 http://picflow.koolearn.com/upload/papers/20140823/20140823191343647684.png,有可能存在实数 http://picflow.koolearn.com/upload/papers/20140823/20140823191343662564.png使得 http://picflow.koolearn.com/upload/papers/20140823/20140823191343678486.png

    D.若 http://picflow.koolearn.com/upload/papers/20140823/20140823191343694676.png,有可能不存在实数 http://picflow.koolearn.com/upload/papers/20140823/20140823191343662564.png使得 http://picflow.koolearn.com/upload/papers/20140823/20140823191343678486.png

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  • 3已知函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191526061750.png的图像如图所示,则 http://picflow.koolearn.com/upload/papers/20140823/20140823191526092591.png的解集为 (     ) http://picflow.koolearn.com/upload/papers/20140823/201408231915261082859.png 

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823191526123854.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823191526217844.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823191526233850.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823191526467860.png

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  • 4某同学对函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330137646.png进行研究后,得出以下五个结论:①函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330153577.png的图象是中心对称图形;②对任意实数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330168272.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823191330184594.png均成立;③函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330153577.png的图象与 http://picflow.koolearn.com/upload/papers/20140823/20140823191330168272.png轴有无穷多个公共点,且任意相邻两点的距离相等;④函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330153577.png的图象与直线 http://picflow.koolearn.com/upload/papers/20140823/20140823191330371414.png有无穷多个公共点,且任意相邻两点的距离相等;⑤当常数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330387311.png满足 http://picflow.koolearn.com/upload/papers/20140823/20140823191330402427.png时,函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330153577.png的图象与直线 http://picflow.koolearn.com/upload/papers/20140823/20140823191330434504.png有且仅有一个公共点。其中所有正确结论的序号是 (     )

    A.①②④

    B.①②③④

    C.①②④⑤

    D.①②③④⑤

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  • 5如图放置的边长为1的正方形PABC沿x轴滚动(向右为顺时针,向左为逆时针)。设顶点 http://picflow.koolearn.com/upload/papers/20140823/20140823191435423296.png(x,y)的轨迹方程是 http://picflow.koolearn.com/upload/papers/20140823/20140823191435455571.png,则关于 http://picflow.koolearn.com/upload/papers/20140823/20140823191435470464.png的最小正周期 http://picflow.koolearn.com/upload/papers/20140823/20140823191435486309.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823191435455571.png在其两个相邻零点间的图像与x轴所围区域的面积 http://picflow.koolearn.com/upload/papers/20140823/20140823191435517325.png的正确结论是(  ) http://picflow.koolearn.com/upload/papers/20140823/201408231914355485644.png

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823191435564384.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823191435579493.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823191435595491.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823191435611551.png 

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823191435564384.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823191435611551.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823191435595491.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823191435579493.png

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  • 6函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191343943816.png的图像与函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191344006842.png的图像关于(  )

    A.y轴对称

    B.x轴对称

    C.y=x对称

    D.原点对称

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  • 7规定 http://picflow.koolearn.com/upload/papers/20140823/201408231930035471186.png若函数 http://picflow.koolearn.com/upload/papers/20140823/20140823193003578951.png的图象关于直线 http://picflow.koolearn.com/upload/papers/20140823/20140823193003594471.png对称,则 http://picflow.koolearn.com/upload/papers/20140823/20140823193003625271.png的值为(   )

    A.-2

    B.2

    C.-1

    D.1

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  • 8函数 http://picflow.koolearn.com/upload/papers/20140823/20140823192648047619.png的图像分别如图1、2所示.函数 http://picflow.koolearn.com/upload/papers/20140823/20140823192648063780.png. 则以下有关函数 http://picflow.koolearn.com/upload/papers/20140823/20140823192648157496.png的性质中,错误的是(     )

    A.函数在http://picflow.koolearn.com/upload/papers/20140823/20140823192648172374.png处没有意义;

    B.函数在定义域内单调递增;

    C.函数http://picflow.koolearn.com/upload/papers/20140823/20140823192648157496.png是奇函数;

    D.函数没有最大值也没有最小值http://picflow.koolearn.com/upload/papers/20140823/201408231926482032703.png

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  • 9已知图①中的图象对应的函数是 http://picflow.koolearn.com/upload/papers/20140823/20140823193754699572.png,则图②中的图象对应的函数在下列给出的四个解析式中,只可能是(   ) http://picflow.koolearn.com/upload/papers/20140823/2014082319375473012053.png 图①                  图②

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823193754746617.png

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823193754777601.png

    C.http://picflow.koolearn.com/upload/papers/20140823/20140823193754793627.png

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823193754808623.png

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  • 10甲、乙二人从A地沿同一方向去B地,途中都使用两种不同的速度 http://picflow.koolearn.com/upload/papers/20140823/20140823192659513431.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823192659529436.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823192659513431.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823192659529436.png). 甲前一半的路程使用速度 http://picflow.koolearn.com/upload/papers/20140823/20140823192659513431.png,后一半的路程使用速度 http://picflow.koolearn.com/upload/papers/20140823/20140823192659529436.png;乙前一半的时间使用速度 http://picflow.koolearn.com/upload/papers/20140823/20140823192659513431.png,后一半时间使用速度 http://picflow.koolearn.com/upload/papers/20140823/20140823192659529436.png.关于甲、乙二人从A地到达B地的路程与时间的函数图象及关系,有如图所示的四个不同的图示分析(其中横轴 http://picflow.koolearn.com/upload/papers/20140823/20140823192659638358.png表示时间,纵轴 http://picflow.koolearn.com/upload/papers/20140823/20140823192659654361.png表示路程,C是AB的中点),则其中可能正确的图示分析为                     (  ) http://picflow.koolearn.com/upload/papers/20140823/201408231926596856491.png

    A.(1)

    B.(2)

    C.(3)

    D.(4)

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