解题方法
1 . 记
的内角
的对边分别为
.已知
.
(1)当角
最大时,求其最大值并判断
的形状;
(2)若
的中线
,求
面积的最大值.
![](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/6a940daedfed91261cb2928b26c0395d.png)
(1)当角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20d48c9814ca43a20a7a488337e93a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2 . 已知
为函数
的一个极大值点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c6cb0cc172657611e286e7fa669584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e837a9c384ea649ba7f8ef5f2c61cd23.png)
A.函数![]() ![]() |
B.函数![]() |
C.曲线![]() ![]() |
D.函数![]() ![]() |
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解题方法
3 . 已知
的内角
的对边分别是
,且
.
(1)判断
的形状;
(2)若
的外接圆半径为1,求
周长的最大值.
![](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/1d8cc99ff0057273debaf2512fbafd39.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解题方法
4 . 设
.
(1)若
,求
;
(2)证明:
;
(3)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e3727959c931222f1f0df95128e411.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9052001bb15ff67ba2fb147b6198462c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74ff1f1a4c1557dc5f0417959b0e410e.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4935df391b8ba35638bbb2e7cc78a06.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bca4d0236ab21f051a6a636128863e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-03-06更新
|
1092次组卷
|
3卷引用:浙江省名校协作体2024届高三下学期开学适应性考试数学试题
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5 . 记函数
的最小正周期为
,若
,且
在
上的最大值与最小值的差为3,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d2209377a5aeadeb1513a596c673e75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459ac2c7e67fac8650a0e5f776f6aef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f041e45e00b71ff9773d2412e5de2d8.png)
A.![]() | B.![]() |
C.![]() ![]() | D.直线![]() ![]() |
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6 . 设函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06426e03e5162415101187414596016.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 设
,已知函数
在区间
恰有6个零点,则ω的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327042d73a631d78ba64c2c0eb9c3c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083479b94380e8d659eff92d10a1989d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 在凸四边形
中,记
,四边形
的面积为S.已知
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/415a82fd-af88-4f7f-813a-45fc2d08bfc3.png?resizew=145)
(1)证明:
;
(2)设
,证明:
;
(3)若
,求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd468d1a338d048553977858d3be4bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57c09208605fe5b1eeaa3ec91cc99367.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/415a82fd-af88-4f7f-813a-45fc2d08bfc3.png?resizew=145)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/052a87cd17b9b729a3d4f1ee3f729a51.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/575008e0b065f0d535251a041203f99f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f880e1050a42a1f66344789919c80ca.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/141a63648a434a1c35da467e1a9b7186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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解题方法
9 . 设圆
,直线
与圆O交于
两点,若
是直角三角形,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00cb95b2b86c98f77724dbadca9e3c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.2 | C.![]() | D.4 |
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10 . 函数
相邻两个最高点之间的距离为
为
的对称中心,将函数
的图象向左平移
后得到函数
的图象,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa598904f605ebd6ddafa11fdd1d2ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5250f1fe2d3fc1b96f6e65cc838e1232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeb076bad84890e24dbdc945ad543cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
A.![]() ![]() |
B.方程![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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