已知函数
.
(1)求
的最小值并写出此时
的取值集合;
(2)若
,求出
的单调减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/523db7c8ac464eb1743ae0fdfa4479ac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fe208f73fa35d3778032cc0208a0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329fbfb692e42b1279521fd025c804b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fe208f73fa35d3778032cc0208a0d8.png)
2022高一上·全国·专题练习 查看更多[3]
更新时间:2022-07-17 12:14:32
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,
.
(1)求函数
的最小正周期和值域;
(2)设
为实常数,若在开区间
内方程
有且只有一个实根,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3298c66e7353badeb17bee89b6de9666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0c69639fae52890563f1bcda1dfa44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb2e46f49adba6036e2624639a1b966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
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适中
(0.65)
名校
解题方法
【推荐2】已知函数
.
(1)求函数
的最小正周期和在区间
上的值域;
(2)若
,函数
在区间
上单调递增,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8454f5a846590923a29e44b125bec9a0.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978922732a3ea77fcbfb4057e92d8060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5ae86d70dc41b37d8a6707c167b03d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30dea7ffafd35dc04afbebf426e45ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐3】已知函数
.
(1)求函数
的最小正周期和单调减区间;
(2)求函数
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534ea0c2f85f484ffb33dc3a8b92b9f1.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff14bdd7f2b48c0ce6ba8696c89fbf68.png)
您最近一年使用:0次
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适中
(0.65)
名校
【推荐1】在平面直角坐标系
中,设向量
,
.
(1)当
时,求
的值;
(2)若
,且
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d328b84c0531593c138c191a024800eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907ae3f4e8de270edef2244cb8ca2251.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f56a20bc5fce6b02217627b42249854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb74ca8fc86ddef279e33f31c1fedda.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce080d729a39128386cbe2defc01ffeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79435334416650585ea492d2c9a05479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bd5b98750163b3e4473921c10eaf88.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】设不等式
,对于
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c561eeb9b7efdd51784f061422a34d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38fec745f18e1c06ecd27a5f6b2577f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】在①
,②
这两个条件中任选一个,补充在下面的横线上,并加以解答.
已知
的内角
的所对的边分别为
,__________.
(1)若
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e55a60c8f81010d730e347a8c0a656.png)
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db132672812c8bc6fd6091198b41365c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc116756c473251646b669f694137322.png)
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff76846660a607dae65b956967b4c2f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba1e7a657ed134e68efd159b606620f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36ec31cfd615abfbee3ed2f4a1d8883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e55a60c8f81010d730e347a8c0a656.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25edcc950d3354ff7df6c74dd4d3f3b1.png)
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适中
(0.65)
解题方法
【推荐2】在△ABC中,角A,B,C所对的边分别为a,b,c,且满足
.
(1)求角B;
(2)若△ABC外接圆的半径为
,且AC边上的中线长为
,求△ABC的面积和周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efbe5905a985bd39359f90752c10100.png)
(1)求角B;
(2)若△ABC外接圆的半径为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
.
(1)求函数
的最小正周期;
(2)若
,
,求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb504d7b6c4f98a3d7f29f4ae6b3266.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b4d2cdbc9e45cbc12c47747e6f5314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c17b7bb8c0926fdaff0db9857ade7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐2】在①函数
的图象向右平移
个单位长度得到
的图象,且
图象关于原点对称;
②向量
,
,
,
;
③函数
.在以上三个条件中任选一个,补充在下面问题中空格位置,并解答.已知______,函数
的图象相邻两条对称轴之间的距离为
.
(1)若
,且
,求
的值;
(2)求函数
在
上的单调递减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c637126d37ced9a48f32bbb151bc27f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeb076bad84890e24dbdc945ad543cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
②向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7739a48d117276b1df47ada8f52c3a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5578e4f613436917802718e88d6d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2104745f6548c40d42d046514e78df46.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226375c3fdae349bb963db46cf23b889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b992104248a854e6e033c26602aff813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c62ea6638460a2933ae5b49d5622fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5224a7da7fe6bc28971ce4c277f88588.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6400c2b996af8a7aaf3e0896e08fcafc.png)
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