11-12高一上·河北衡水·期中
1 . 设函数
,
(1)求函数
的零点;
(2)在坐标系中画出函数
的图象;
(3)讨论方程
解的情况.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113eff4fc6357344d826ff081714339d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在坐标系中画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)讨论方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8e32a6eb5714766b403cb9fffd46ed.png)
![](https://img.xkw.com/dksih/QBM/2011/12/1/1570552249245696/1570552254267392/STEM/dd8a9344-b7d3-4ec5-b5cb-466afd7396d2.png?resizew=202)
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11-12高一上·河北衡水·期中
2 . 已知函数
的两个零点为
,
设
,
,且
,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2012/10/30/1571043916562432/1571043922165760/STEM/e8fba05139574bf5a18343a099d3fbb1.png)
![](https://img.xkw.com/dksih/QBM/2012/10/30/1571043916562432/1571043922165760/STEM/c543dd8b7e5d4e6bbd9b26e0e32c0c0a.png)
设
![](https://img.xkw.com/dksih/QBM/2012/10/30/1571043916562432/1571043922165760/STEM/2b3c00eea5e24f7e9b01c23a4a19d224.png)
![](https://img.xkw.com/dksih/QBM/2012/10/30/1571043916562432/1571043922165760/STEM/27cf639cdf0d43d6a3c1568376f59ece.png)
![](https://img.xkw.com/dksih/QBM/2012/10/30/1571043916562432/1571043922165760/STEM/2fd68f6b1cc740698565e8ea48d8c3a4.png)
![](https://img.xkw.com/dksih/QBM/2012/10/30/1571043916562432/1571043922165760/STEM/bf78963a34fe4777a89e12784161d8ad.png)
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11-12高三上·山东济南·阶段练习
3 . 如图是一个二次函数
的图象.
(1)写出这个二次函数的零点;
(2)写出这个二次函数的解析式及
时函数的值域
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(1)写出这个二次函数的零点;
(2)写出这个二次函数的解析式及
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73db65f347905c39400e55a653314d02.png)
![](https://img.xkw.com/dksih/QBM/2011/11/5/1570343403151360/1570343408336896/STEM/3cafbc31-013c-48c0-9c42-bdcc4f69a062.png?resizew=138)
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10-11高一下·山东·期末
4 . 如图是函数
的一段图象.
![](https://img.xkw.com/dksih/QBM/2011/7/15/1570260464107520/1570260469465088/STEM/6c1161e6915d4f77871a038d8556a536.png?resizew=180)
(I)求
的值及函数
的解析式;
(II)求函数
的最值及零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e658113eadee1b45111b2a927c24e2f.png)
![](https://img.xkw.com/dksih/QBM/2011/7/15/1570260464107520/1570260469465088/STEM/6c1161e6915d4f77871a038d8556a536.png?resizew=180)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(II)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbb99f625516e0ddcc2d8f087a872ff.png)
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5 . 在平面直角坐标系
中,给定抛物线
,实数
满足
,
是方程
的两根,记
(1)过点
作
的切线交
轴于点
,证明:对线段
上的任一点
,均有
;
(2)设
是定点,其中
满足
,过
作
的两条切线
,切点分别为
,
与
轴分别交于
,线段
上异于两端点的点集记为
,证明:
;
(3)设
,当点
取遍
时,求
的最小值(记为
)和最大值(记为
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423dd554f7aeb16125a504a184475cef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772afcc01c1403c748a0309e864cc61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969eb127024cc1af1f9bf025a65270b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3fb59a42bef86feafb85a91ac571bf.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8817cd9512dbb13ec1b51fc08f24665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcfcaf60bec2f8e1f983f46380d71e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe069597c109e716479c9296cf3ebcb.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe689f915e3c9c12616966d1a9a9352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2714a73764c5e100793c925f5812aad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c862b6389bc63a67c0e3cc86466e1269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1871c2be51c597ca28acb6dd8555bf.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de41f1cac6a2d9a98ec52a72a18283b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698c4d4e50062b4a7dd70fe1b4ab4fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2542208be649a40105724802a7ad10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3934126cd86a6bf079a2650e5f79979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a0c8b7d066e9d3b9a4db3161b74df1.png)
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6 . 已知函数![](https://img.xkw.com/dksih/QBM/2016/5/4/1572614872227840/1572614878453760/STEM/9a7f2448240f45ca9425b710da251fbf.png?resizew=195)
(Ⅰ)求
,
,
的值;
(Ⅱ)求函数
的零点.
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572614872227840/1572614878453760/STEM/9a7f2448240f45ca9425b710da251fbf.png?resizew=195)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572614872227840/1572614878453760/STEM/474d3a7a027b4ef390a64ebac765334d.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572614872227840/1572614878453760/STEM/43ce3376b11949bcbfff720c9c3f39fd.png?resizew=44)
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572614872227840/1572614878453760/STEM/6bf00acc680a461b859cb669b8e91979.png?resizew=56)
(Ⅱ)求函数
![](https://img.xkw.com/dksih/QBM/2016/5/4/1572614872227840/1572614878453760/STEM/5e681cb315a84f0d9b5f76bc67765623.png?resizew=36)
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7 . 若
满足
,则称
为
的不动点.
(1)若函数
没有不动点,求实数
的取值范围;
(2)若函数
的不动点
,求
的值;
(3)若函数
有不动点,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/8c52da787b664f5b8b5ff30bbbe3445e.png?resizew=45)
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/16cbaf7133c14e1c88a6c505c5bed6e7.png?resizew=71)
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/7facc2e89b954e1daf098e303aa69078.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/c83168125d3e4877859c071bb769323c.png?resizew=36)
(1)若函数
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/04297f13c06b4ac5af33e8665f8a8c92.png?resizew=120)
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/adbca00ef5a040968652ed664ed177f4.png?resizew=13)
(2)若函数
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/3b5a28bcc00a4027be8caae320aab725.png?resizew=107)
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/9819dcc813aa4b5489736fdea1b1c874.png?resizew=123)
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/35cafa919331445a96b5fa12cd8c2873.png?resizew=13)
(3)若函数
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/a2ab04cbe61a440caf8a6ae378291248.png?resizew=189)
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490913677312/1572490919641088/STEM/adbca00ef5a040968652ed664ed177f4.png?resizew=13)
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