已知函数
.
(1)求
的单调递增区间;
(2)若关于
的方程
在
上有实数根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f5d96d7040bbe1779b663819677212.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b9d907916f841394edd0fedd03ea4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2020-02-14 08:16:21
|
相似题推荐
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】某同学用“五点法”画函数
(
,
,
)在某一个周期内的图象时,列表并填入部分数据,如下表:
(1)请将上表数据补充完整,填写在答题卡上相应位置,并直接写出函数
的解析式;
(2)若函数
在
上的最大值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c9e46448bc791c441ca02d8f4508eb.png)
![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | |||
![]() | ![]() | ![]() | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66207cf19e19d437275eef83634509c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113cc2eb1633f22868d0f178b7dbdd74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-作图题
|
适中
(0.65)
名校
解题方法
【推荐2】已知函数
.
![](https://img.xkw.com/dksih/QBM/2020/12/23/2620376398708736/2624439631749120/STEM/486d73ac-7366-4945-805a-95bd768c1432.png?resizew=536)
(1)用“五点法”作出函数
在
上的简图;
(2)若方程
在
上有两个实根,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89160b0b2bb85f7d24f1533a4166105a.png)
![](https://img.xkw.com/dksih/QBM/2020/12/23/2620376398708736/2624439631749120/STEM/486d73ac-7366-4945-805a-95bd768c1432.png?resizew=536)
(1)用“五点法”作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7879dec49d9042e1270a2f755da6c9f.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc231c399eaba3ac0c3593ca0a362f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408972cc14bd4152a0d62c81414fc783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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
的单调递减区间;
(2)令
,若函数
在区间
上的值域为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a21f80ee2843e948c07f1392be2a818.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018a285b53e19be4d5ed03b4c570773f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899677c9e03743a3d87b05c64972c6bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】在
中,
,
,
分别是角
、
、
的对边,向量
,
,且
.
(1)求角
的大小;
(2)设
,且
的最小正周期为
,求
的单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/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/e13126ad5a2bf9ef0a135f3b3766b032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d02d113938ffee0bffbe6318a2f298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2758285d3c1d8c16784edbc5f572fc26.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803ce48587052ae3c144a0e058342500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐2】在①函数f(x)的图象中相邻的最高点与最低点的距离为5,②函数f(x)的图象的一条对称轴方程为x=-1,③函数f(x)的一个对称中心的横坐标为
.这三个条件中任选一个,补充在下面题目的横线处,并解决问题.
已知函数
,且________,点
在该函数的图象上,求函数f(x)在区间
上的单调递减区间.
注:如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f079822740a43def4c00aca26b0607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c4520a287f1479cc8cd76f5ac6cbbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f54dd475ff1321041c80738b201c3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf664ed944afee2ec6d18b67fd09b06.png)
注:如果选择多个条件分别解答,按第一个解答计分.
您最近一年使用:0次
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适中
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【推荐3】已知向量
,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faf96063b6dfe36286ae248844b74b99.png)
(1)求函数
的单调递增区间;
(2)已知
分别为
内角
的对边,其中A为锐角,
,且
,求
的面积S.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1010490a46eb41856fadcdde095f0a77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faf96063b6dfe36286ae248844b74b99.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68dd79ec94174a74552dcca43ff85140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0d5cf8c22d0cf93274939d92963665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知函数
(
,且
).
(1)判断的奇偶性,并给予证明;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ac01b1e9bcfdf9e70034b4220a22aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)判断的奇偶性,并给予证明;
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知集合
,集合
.
(1)若
,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c797df9bc3030344bd7390536ff38dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c322f09cc683a535140c6b1a279d5ea5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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
【推荐3】(1)已知函数
(
)的图像恒过定点A,且点A又在函数
的图像上,求不等式
的解集;
(2)已知
,求函数
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cf0c72bb9d1ab4d3e424948ba12acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c267cbb9c8d5df79a36776e887d2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a64041cd46b4ab48223ab79d054cb3.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6dfd5aa1dad298da234206469077455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9cdd011b8ea27e326ccaf55f892305.png)
您最近一年使用:0次