名校
解题方法
1 . 将函数
的图象向左平移1个单位长度后,得到
的图象,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
______ ;将
图象上每个点的横坐标缩短到原来的
,纵坐标不变,得到
的图象,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74a01d149399210cc1ce429a5b2b20e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92cecdcdeb1280e1de7e6335e0d56bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74a01d149399210cc1ce429a5b2b20e.png)
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2023-06-03更新
|
124次组卷
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2卷引用:四川省眉山市彭山区第一中学2022-2023学年高一下学期5月月考数学试题
2 . 若函数
的一个零点为
,则A=______ ;
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05c8d04f5339d3870b6223c667bea4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8ae071199874d9d74a4919a58902f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca21ed066d60137c02edee7641e2723.png)
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2022-12-30更新
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433次组卷
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4卷引用:四川省眉山市2023届高三第一次诊断性考试数学(文)试题
3 . 共和国勋章,是中华人民共和国最高荣誉勋章,授予在中国特色社会主义建设和保卫国家中作出巨大贡献、建立卓越功勋的杰出人士.2020年8月11日,国家主席习近平签署主席令,授予钟南山“共和国勋章”.某市为表彰在抗疫中表现突出的个人,制作的荣誉勋章的挂坠结构示意图如图,O为图中两个同心圆的圆心,三角形ABC中,AB=AC,大圆半径OA=2,小圆半径OB=OC=1,记S为三角形OAB与三角形OAC的面积之和,其中
,
,则S的最大值为______ ,此时![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/007a63c2303f33e3dab20d49e846d4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597a3d2f88e3d391fc4e9a5131c290ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
![](https://img.xkw.com/dksih/QBM/2022/7/20/3026587167899648/3027144439898112/STEM/cd49b4ca962349c5972726929c790eea.png?resizew=160)
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4 . 如图,为测量山高
,选择
和另一座山的山顶
为测量观测点.从
点测得
点的仰角
,
点的仰角
以及
;从
点测得
.已知山高
,则山高![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2b3247afa684b10c8e1da99cf33d5b.png)
______________ m.两山山顶的距离![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3ae0ac1cd4e5221eb8be9463c166a2.png)
__________________ m.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3181e58f09e9fec4e43e422b82831b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e0b41cd45fba881194a02ec19bc26e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a61ee9c2a3a4f2690dad01ef53ede1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffdd51cda1514e65f4f3dd506a854562.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f262b817cd1cdd0493407ba9b11bd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2b3247afa684b10c8e1da99cf33d5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3ae0ac1cd4e5221eb8be9463c166a2.png)
![](https://img.xkw.com/dksih/QBM/2020/7/11/2503767331577856/2505063590469632/STEM/5b7a2c54ecc14ce58428961356b13f2c.png?resizew=196)
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2020-07-13更新
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195次组卷
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2卷引用:四川省峨眉二中2020届高三高考适应性考试文科数学试题
名校
5 . 我国南宋著名数学家秦九韶发现了由三角形三边求三角形面积的“三斜公式”,设
的三个内角
,
,
的对边分别为
,
,
,面积为
,则“三斜求积”公式为______ .若
,
,则用“三斜求积”公式求得
的面积为______ .
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd43df1c51ee0f1a4075ba98f3928488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca1963fc5899003a5f614e6f808d14e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2020-05-08更新
|
89次组卷
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2卷引用:四川省仁寿第一中学校南校区2019-2020学年高一下学期开学考试数学试题
6 . 在
中,内角
所对的边分别是
.若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
____ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/7ce5be4af90f25e39f94b410f7e59300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c5cd6ce30ac70cd343334139c1a478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2019-09-12更新
|
313次组卷
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3卷引用:四川省仁寿第一中学校北校区2019-2020学年高一下学期开学考试数学试题