名校
1 . 已知函数
的最小正周期为
.
(1)求
的值,并求函数
的单调递减区间;
(2)已知
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28c356c1f54bfe257a60bf54fe18b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b18fdbddb778d2cc45107488740210.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823c1e12de5a2a622f19d18e1e25fa0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4909caa0b00967e262c5f944718f8480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d572f36ef704e7aa455c5f31fb926cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bbc94cfd741372d95b5708ca4ef1da.png)
您最近一年使用:0次
2022-10-20更新
|
770次组卷
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4卷引用:广东省梅州市梅雁中学2022-2023学年高一下学期3月月考数学试题
名校
解题方法
2 . 在△ABC中,角A,B,C所对的边分别为a,b,c,已知b-c=2,
,b2+c2=52.
(1)求a;
(2)求cos
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256b633bc67729ae23268fc17117a0f1.png)
(1)求a;
(2)求cos
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d001dd22d475bd25172ff4cda6112eb.png)
您最近一年使用:0次
名校
3 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a956a9767a4bf63624c31cba1e72ce.png)
(1)求
;
(2)若
,且
,求
的值.
(3)画出函数
在区间
上的图像(完成列表并作图).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a956a9767a4bf63624c31cba1e72ce.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a423e593de879ed0f4cfe054d8f3f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a64c7e28fd46eace2bc7fcba5e2d444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
(3)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
![](https://img.xkw.com/dksih/QBM/2018/6/1/1957886927265792/2007600146096128/STEM/b365700c75be4ff08833ba7ab9e6bbbc.png?resizew=296)
您最近一年使用:0次
2018-08-10更新
|
802次组卷
|
2卷引用:【全国校级联考】广州市培正中学2018年高一第二学期数学必修(四)综合测试题一