已知函数
,
的最小正周期为
.
(1)方程
在
上有且只有一个解,求实数
的取值范围;
(2)是否存在实数
满足对任意
,都存在
,使
成立.若存在,求
的取值范围,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7865a907345c101f6eebe3af0c185130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
(1)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c810e7f6a62eef3ee38cb0fea77630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5acfe4c3097b7c51ae97c7d223c8bfda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a3163cc2d37e7b7fe450f6e8bf8500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ba8542fbe02e78cf3948c9abea9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3da020914adc18f7b5e25079e781bb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2022-05-19 10:22:27
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解答题-证明题
|
适中
(0.65)
名校
【推荐1】已知函数
,函数
,设
.
(1)求证:
是函数f(x)的一个周期;
(2)当k=0时,求F(x)在区间
上的最大值;
(3)若函数F(x)在区间
内恰好有奇数个零点,求实数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07699d9a8a6a1770b7ae08897abac853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4a029e4c4f50133090661fbcf09654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(2)当k=0时,求F(x)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e491151109a22b53131ba3203da29837.png)
(3)若函数F(x)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfe8e7fb253685e0e50bae0c5482314.png)
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【推荐2】已知
是定义在
上的奇函数,当
时,
.
(1)求
在
上的解析式;
(2)当
时,
恒成立,求实数
的取值范围;
(3)关于
的方程
在
上有两个不相等的实根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02126620d782d0d3863c4f3619194d98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a785c62cb8ea9fd36a94938c613a81a7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53224898de85a85058ad336490bbbaa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e971e6942744e15929b43fa0f4499b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9204244b5b01ac83fad92e85b44607b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b2e67cd10ebbced3d964ab0dc5c298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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解答题-问答题
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解题方法
【推荐1】函数
的部分图象如图所示,把函数
的图象向右平移
个单位,得到函数
的图象.
(1)若方程
在
上有解,求实数t的取值范围.
(2)当
时,方程
的实根从小到大依次为
,
,求
的数值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e658113eadee1b45111b2a927c24e2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d28c41c0dab365316497fd39e0426966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/16/8457864e-9d98-4baf-855a-b4ac0f9ddceb.png?resizew=164)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0511dba3c76542dba05409f1266a05bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c1c1c885e28ef61bf47d1a61a847bb.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390391df715c8ff9a06b1467d94c6aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ab8b4ee0658aea3e2deb33a10103eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab84c3fe70da38ccb246fd4a71f9d86.png)
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解题方法
【推荐2】已知函数
的最大值为
.
(1)求常数a的值;
(2)若函数f(x)在[
,m]上只有两个零点,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9227b1afb01dc8cae8736ddd2889a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
(1)求常数a的值;
(2)若函数f(x)在[
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39dbd2197113172b7d591e6381de61c0.png)
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【推荐3】已知函数
,将
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(纵坐标不变),得到函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3510b22fcf848f36cfaf5ff8964ce049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b82c43ecb40fa763214e98b86b70219.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5b965b3f27889e139013aa8c8f8fe3.png)
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【推荐1】已知函数
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(1)求函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
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【推荐2】已知向量
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(1)若
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(2)在△ABC中,角A,B,C所对的边分别是a,b,c,且2acosB=bcosC+ccosB,求角B及f(A+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
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解答题-问答题
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适中
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【推荐1】已知二次函数
满足
,
,且
的最大值是8.
(1)试确定该二次函数的解析式;
(2)
在区间
上恒成立,试求
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(1)试确定该二次函数的解析式;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ee6cc7dc957c7e899aff4ec5ee0f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4642c1f1c6c213cf8087222eb760965.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
【推荐2】已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5304fedf36fc632d02303cd6602c0ec.png)
(1) 解关于
的不等式:
;
(2) 若函数
的定义域为
,有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5304fedf36fc632d02303cd6602c0ec.png)
(1) 解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d171fda42655667d4060378a8cd27ef9.png)
(2) 若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aadc68ed399afd6db385dae5e963c97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969befef097f30fa8abb9d484a2c46a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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