名校
1 . 已知函数
,将
的图像上所有点向右平移
个单位长度,然后横坐标伸长为原来的2倍,纵坐标不变,得到函数
的图像.若
为奇函数,且最小正周期为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59030bf7f6a98a47cab7fb12d64adbdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
A.函数![]() ![]() |
B.函数![]() ![]() |
C.不等式![]() ![]() |
D.方程![]() ![]() |
您最近一年使用:0次
2023-02-15更新
|
820次组卷
|
2卷引用:江西省宜春市宜丰中学2022-2023学年高一下学期期中数学试题
名校
解题方法
2 .
中,a,b,c分别是内角A、B、C的对边,已知
,
,现有以下判断:
①若
,则B有两解;
②b+c不可能等于12;
③若
,则
的面积为
;
④
的最大值为
.
请将所有正确的判断序号写在横线上______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f2f1eb2beb23690f56a68dc7da08cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
②b+c不可能等于12;
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5eeefa3c7678900a6aabec118757db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27567d43c5b91382ee3d7ca708ee422.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7c566e3d65ca9c450d47980b7e66ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427cc3ae2dab5580fcb93eba22246595.png)
请将所有正确的判断序号写在横线上
您最近一年使用:0次
解题方法
3 . 计算:
(1)求值
;
(2)已知
,
,求
的值
(1)求值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c993d3d8b2843b466214ec8277e5eb1e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ffc29f5c08858ee01e8a97ecc07c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/136de78eaaf3c53562e477412b8492f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
您最近一年使用:0次
2023-01-28更新
|
445次组卷
|
8卷引用:模块三 专题4 大题分类练(三角恒等变换)(苏教版)
(已下线)模块三 专题4 大题分类练(三角恒等变换)(苏教版)(已下线)模块三 专题4 大题分类练(三角恒等变换)【人教B版】江苏省常州市教科院附属高级中学2022-2023学年高一上学期期末模拟数学试题A卷(已下线)专题04 二倍角的三角函数-期中期末考点大串讲(苏教版2019必修第二册)(已下线)模块三 专题7 大题分类练(三角恒等变换)拔高能力练(北师大版)(已下线)模块三 专题5 大题分类练(三角恒等变换)拔高能力练(苏教版)(已下线)5.5.2简单的三角恒等变换(第2课时)(已下线)专题02 三角恒等变换(1)-期末考点大串讲(苏教版(2019))
4 . 如图所示,在山顶
点已测得
,
,
的俯角分别为
,
,
,其中
,
,
为山脚两侧共线的三点,现欲沿直线
开通穿山隧道,为了求出隧道
的长,至少还需要直接测量出
,
,
中的哪些线段长?把你上一问指出的需要测量得线段长和已测得的角度作为已知量,写出计算隧道
的步骤.
![](https://img.xkw.com/dksih/QBM/2018/3/14/1901794656919552/1906225170636800/STEM/74f2b76b703b488ab486b9d8e543099f.png?resizew=304)
解:
步骤
:还需要直接测量得线段为.
步骤
:计算线段.
计算步骤:
步骤
:计算线段
计算步骤:
步骤
:计算线段
计算步骤:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2018/3/14/1901794656919552/1906225170636800/STEM/74f2b76b703b488ab486b9d8e543099f.png?resizew=304)
解:
步骤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
步骤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
计算步骤:
步骤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
计算步骤:
步骤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
计算步骤:
您最近一年使用:0次
解题方法
5 . 计算求值:
(1)计算
的值;
(2)已知
、
均为锐角,
,
,求
的值.
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a497cfa130c80a1c93a49f80ea7aaa83.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b9189638705753a50b5dc1c6ef54ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c740e41a3ad0345cc45155d1c2eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fe57d4fbae536de2e641d9d349fcf1.png)
您最近一年使用:0次
6 . (1)化简:
;
(2)求值:若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4d5f43d22443e100b8165aad0e350c.png)
(2)求值:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c65c95a93046f363c82fc43a62060a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/482f686f238427fa04db956d2911be0f.png)
您最近一年使用:0次
7 . 已知
.
(Ⅰ)求
的值;
(Ⅱ)若
是第二象限的角,化简三角式
,并求值.
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939183210496/1572939189100544/STEM/d529619af2354a93bc8852db6f9321dd.png)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939183210496/1572939189100544/STEM/6e62016428644e52acc166e82e73f3f9.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939183210496/1572939189100544/STEM/9d8a5e16ee854b28b872f322cd37abb1.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572939183210496/1572939189100544/STEM/d8ef59e6948341b4816f61d1cb28dc87.png)
您最近一年使用:0次
8 . 已知
,
(1)求
的值;
(2)若
是第三象限的角,化简三角式
,并求值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b951e66702f574883f1621f5cdf30e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c5a05a11f731194a845e68a0479ce4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef2b3ea4b930c2b056c74dc3a13256f.png)
您最近一年使用:0次
名校
9 . 化简计算:
(1)
;
(2)设
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565bebf8472f3764fa1ca597cca561aa.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275afa38f5f1e4a53bd503f3e1b22a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecd5f251e8a94a611cc98d239ff9575.png)
您最近一年使用:0次
2020-08-16更新
|
1245次组卷
|
3卷引用:陕西省西安市蓝田县2018-2019学年高一下学期期中数学试题
10 . 已知向量
,函数
.
(1)求函数
在
上的单调递减区间;
(2)若
,且
,求
的值;
(3)将
图象上所有的点向左平移
个单位,然后再向上平移1个单位,最后使所有点的纵坐标变为原来的2倍,得到函数
的图象,当
时,方程
有一解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95dcf4a88de252d3b3385deb8741601c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1525aee9019a25cf71dc6054ec1ce.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1525aee9019a25cf71dc6054ec1ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c195698ac387fe53b3b1e0248a1fcc92.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca1b47ff31f505df95eada1803d6052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab23bb781ca1676f8ffd05fcc1e8080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ff0e5c78c04beea4e773185195da30.png)
(3)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd569dea5ce34578ebec285e816dbdc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
7日内更新
|
631次组卷
|
3卷引用:山东省济宁市兖州区2023-2024学年高一下学期期中质量检测数学试题