1 . A,B两地之间隔着一个水塘(如图),现选择另一点C,测得
,
,
,求A,B两地之间的距离(精确到1m,
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/370e844b0bb8851af0a04e1cc40ea741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e3cb49624f126031e5980be092c41c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f29e5bbd035be7295e1bef11da24d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ef27e2cb700e047791cb70b3d03598.png)
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2 . 根据下列条件解三角形(边长精确到0.01,角度精确到0.1°,
):
(1)已知
,
,
,求a;
(2)已知
,
,
,求A.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fd3946f0c8f420f5828f26992b826c.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1466856bf2570685d3629c1f813748.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1ec9c5eaed4c211a040a2a33fb7c91.png)
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3 . 已知扇形的周长为
,圆心角为
,求该扇形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcbdcf4d4784de11ae2331cf54ffa9b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b27d11d0fe6df96fd26654e7fa08da.png)
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4 . 把下列各角从度化为弧度:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92c56ee3ef48d94273027d8e2e18e6d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50d5b2e6382c89a46d51ccd3c24786c.png)
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5 . 把下列各角从弧度化为度:
(1)
;
(2)3.5.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03055b70309bf16ae51161474de645c.png)
(2)3.5.
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6 . 已知
与
角的终边相同,判断
是第几象限角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bd5682513e36cc7a2a394e6ddfe4e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0e27121a582de019f7d539dbd95114.png)
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7 . 在
到
的范围内,找出与下列各角终边相同的角,并分别判断它们是第几象限角:
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3835366a95e8d85293366a46fc0a81d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384b3248b6c1f724dbe653fb1c84153.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5bc234e5811c6152a0dae46754a5fe.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4508dd402550e396c9fe2ab184934e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942a3dd535bceac047b82a3d5249f118.png)
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8 . 写出与下列各角终边相同的角的集合,并找出集合中适合不等式
的元素
:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94400bf92045a3274f928635868cb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f727060721b1c59253c5b88de9112cbc.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467477862c13b3cd4c45ff97e384f27e.png)
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2023-09-19更新
|
193次组卷
|
6卷引用:人教A版(2019) 必修第一册 逆袭之路 第五章 5.1 任意角和弧度制 5.1.1 任意角
人教A版(2019) 必修第一册 逆袭之路 第五章 5.1 任意角和弧度制 5.1.1 任意角人教A版(2019) 必修第一册 新高考名师导学 第五章 5.1 任意角和弧度制(已下线)5.1 任意角和弧度制人教A版(2019)必修第一册课本习题5.1 任意角和弧度制(已下线)5.1.1任意角(导学案)-【上好课】(已下线)7.1 角与弧度(1)-【帮课堂】(苏教版2019必修第一册)
9 . 求下列三角函数值:
(1)
(精确到0.001);
(2)
;
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6af798d44ebfda9b8e9c4376299ce0e3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac8d8bb46e1797227ae05c168a60d90.png)
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解题方法
10 . 求下列各角的正弦、余弦和正切.
(1)0;
(2)
;
(3)
(1)0;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff5bb943e2d1bf24e53e81739a891a0.png)
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