已知
的内角
的对边分别为
.已知
.
(1)求
的取值范围;
(2)当
取最大值时,若
,求
的面积.
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76c7f4c34973bac38955d85feefa911.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d803e27871810c6b8a7d6169144dd61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
19-20高三·安徽马鞍山·期末 查看更多[3]
2020届安徽省马鞍山市高三第一次教学质量监测文科数学试题2020届高三2月第01期(考点04)(文科)-《新题速递·数学》(已下线)第1章+解三角形(基础过关)-2020-2021学年高二数学单元测试定心卷(苏教版必修5)
更新时间:2020-01-20 11:44:01
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】在
中,角A,B,C的对边分别为a,b,c,
.
(1)若
的面积
,
,求a的值;
(2)若函数
在区间
上有零点,求t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79f58ee901b9b2fcb8477ef79df5c404.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3dcbb853e4b9fd1d011bd5f1948018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7407d82d6e55b969d34e937ce36f3d.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/109bfc1d079e91f985e226fbb685ae33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180735d52856f4393e40e28e7fcc95bc.png)
您最近一年使用:0次
【推荐2】在①
,②
,③
三个条件中任选一个补充在下面的横线上,并加以解答
在
中,角
,
,
的对边分别为
,
,
且______,若
的角平分线
交
于
点,且
,
,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c1ba07e7a73d022b99743224c61a745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b63f13c587461426432358d5480438a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2c08081134842da81bf81606c4cdb7.png)
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/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/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602f865dbef12a388990997ec59332f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721e29b775e696045f44a4b1e7f74ef2.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
.
(1)求函数
的值域;
(2)已知锐角
的两边长分别是函数
的最大值和最小值,且
的外接圆半径为
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a0b373486d473ddd722b028eb3c4d6.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250b5107cbd77faecb232faa478adfa4.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)
解题方法
【推荐2】在
中,角
所对的边分别为
.
(1)证明
;
(2)若
,求
的面积.
![](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/64e13289528eaf2f29a800c01d4c85ba.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83577a7a75ed110d15d9b61f27810d4c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016a1917bb7afbdc6929614ebd4b297d.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)
【推荐1】已知函数f(x)=
sinωxcosωx+cos2ωx﹣
(ω>0),与其图象的对称轴x=
相邻的f(x)的个零点为
.
(1)判断函数f(x)在区间[﹣
,
]上的单调性;
(2)设△ABC的内角A,B,C的对边分别为a,b,c,其中c=
,f(C)=1.若向量
=(1,sinA),
=(sinB,﹣
),且
⊥
,求a,b.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1902d864d3f16535e273f7851b92a4fe.png)
(1)判断函数f(x)在区间[﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
(2)设△ABC的内角A,B,C的对边分别为a,b,c,其中c=
![](https://img.xkw.com/dksih/QBM/2018/12/13/2095993388777472/2098234652221440/STEM/de42296d68734219b03dc724f84b2e5e.png?resizew=21)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977cdba23aa011c10b819a35d9a16a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184c6736108865aa9ba3680f3d50526a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977cdba23aa011c10b819a35d9a16a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184c6736108865aa9ba3680f3d50526a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,函数
(其中
)的图像与坐标轴的三个交点为
,
,
,且
,
,
,
为
的中点,
.
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572929803640832/1572929809833984/STEM/51b9f03f7b7d4b6ba7f82f3d706c1c9c.png?resizew=151)
(1)求
的值及
的解析式;
(2)设
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe846f6496a728cb62136ad7eb68665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7466bdd263af47f54bfa0021d2e1ce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2dd9c531b52396586588da83ed881c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7fdcef5f635471f82502eeb1ddcde7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983cc618d0783c0d265f8970940beb8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617ca3ec5385fdf828853dc199ec944b.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572929803640832/1572929809833984/STEM/51b9f03f7b7d4b6ba7f82f3d706c1c9c.png?resizew=151)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232f42f47b4102893ca4c6d154ece38f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
您最近一年使用:0次