在复平面内,O是原点,
对应的复数分别为
,i为虚数单位,设函数
.
(1)求函数
的解析式;
(2)若函数
在区间
上有2个零点,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1625e24072a8fe6c277ecfca2c62cdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/556db2d18a610a6878d743d25c61e4a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae92073e597401abb93ffb863453ecd.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25079f12119793682bee7dcd103d12e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
20-21高一下·浙江·期末 查看更多[2]
更新时间:2021-05-07 10:18:32
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
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(1)求
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(2)求
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(3)求
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(1)求
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(2)求
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(3)求
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【推荐2】已知
是函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f079822740a43def4c00aca26b0607.png)
图象上的任意两点,且角
的终边经过点
,当
时,
的最小值为
.
(1)求函数
的解析式;
(2)当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0de3129f0c484d2542e4d0810cbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f079822740a43def4c00aca26b0607.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1648e2759dabb2d966e5ebc3c46d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d3d8c08dcf8a656bacdf29af416.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf45cb1d6f6d0c6bec1abd281f475cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
【推荐1】已知函数
.求:
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(3)函数的递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55036377d715f724c46558e2588cab93.png)
(1)函数的最小正周期;
(2)函数的最大值和最小值及取得最值时x的值;
(3)函数的递增区间.
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解题方法
【推荐2】为改善小区环境,拟对小区内一块扇形空地
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米,
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关于
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
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(1)求人工湖面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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适中
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【推荐1】如图,在平面四边形ABCD中,
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(1)设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff29f08d9394679da2409095df55b9b0.png)
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【推荐2】已知两个不共线的向量
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f726edf8cca26e1011faa7101c506e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4e49d17d4ad440d37c6f4bc8daba25.png)
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适中
(0.65)
【推荐1】设复数
i,
i,记复数
与
分别对应复平面内的点
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和
两点间的距离;
(2)已知
(
为正实数)表示动点
的集合是以点
为圆心,
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的点
的集合是什么图形?并求出该图形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75407f5349719aba26f58213459793eb.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b3284b97f803dce36872eb8ab805d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
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