名校
解题方法
1 . 已知
为偶函数,其部分图象如图所示,
分别为最高点和最低点,且
,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/930f3c9a-a36b-45cf-b857-b244853ffe70.png?resizew=151)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26e837e4a21c799dcac2141289a1c23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af7cfb18e6fa69e79d30e12ecebb7bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a9910584dcf36faa944f311b46cf000.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/930f3c9a-a36b-45cf-b857-b244853ffe70.png?resizew=151)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-10-20更新
|
103次组卷
|
2卷引用:广西桂林市第十八中学2020-2021学年高二上学期第一次阶段性考试数学(理)试题
名校
2 . 已知函数
(
)有一条对称轴为
,当
取最小值时,关于x的方程
在区间
上有且只有一个根,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48526a34ccf27d7b75b77ce0f8cb17cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15c7899ea29f7155cd75825dc7ae3ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c23a3abb4cbfbf42adceecffb1521958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fee19fef930b81f2605c4642b6211c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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3 . 已知函数
,
,若
,对任意
恒有
,在区间
上有且只有一个
使
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9f13c13622af78df02c7394574cb75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af2f2948f0a8f5ef134e706d16db183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5274bb2f97f4e2c316168c9800773345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c999aab899a279d88babdb67e1102ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ce6bcb3addf38f4d5db63daf9f37545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef8fe5c59d55a502ef5c049920e944c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 已知向量
,
,若
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddac50ca9d89729c6ac4a5d687bd3b0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51a784d60bb81b3cd99fa2bb1176b3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5aa846a5b7c96fe2ce665eb1ea5f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.0 | B.![]() | C.6 | D.![]() |
您最近一年使用:0次
2020-10-20更新
|
120次组卷
|
2卷引用:广西桂林市第十八中学2020-2021学年高二上学期第一次阶段性考试数学(理)试题
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5 . 已知
则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53929a069e01c9a9c73c9c91b63ea655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-10-22更新
|
472次组卷
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2卷引用:广西壮族自治区桂林市第十八中学2019-2020学年高二上学期10月月考数学试题
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6 . 已知
为直线
上一点,则
的值是 _____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f78f41281d445cdf38caf48557ada92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f7fbfa2214ca72495a993b2fed8b61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8429ed404288f45bbfde3d3e0283515.png)
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7 . 已知三角形
中,
,
边上的中线长为
,当三角形
的面积最大时,
的长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2019-10-09更新
|
427次组卷
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8 . 在
中,角
、
、
所对的边分别为
、
、
,若
为锐角三角形,且满足
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b269069e460c7ab1d90ee9bac7bd876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bbc8c7b97d8d6481ff992825e6bb641.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-04-30更新
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2340次组卷
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9 . 若向量
与向量
共线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a81f0f4b80e2a3daec83b34edabf41c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6854fa3598b805f1895f9e0e01d767d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
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2018-04-29更新
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606次组卷
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10 . 若角
的终边经过点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a67789c3ac05b171cb385c29dc52d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb9b294d427d9bcca7ff4f88c7ab51c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a67789c3ac05b171cb385c29dc52d5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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1346次组卷
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8卷引用:广西桂林市第十八中学2019-2020学年高二下学期开学考试数学(理)试题
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