解题方法
1 . 关于函数
,给出下列三个结论:
①函数
的最小值是1;②函数
的最大值是
,
③函数
的最小正周期为
;④函数
在区间
上单调递增.
其中全部正确结论的序号是_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b15ec5de685c7cb62125f078c2d726.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076172c175baeec0928da853969c836a.png)
其中全部正确结论的序号是
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2 . 设函数
,若
的图象关于点
对称,则
的值可以是______ .(写出一个满足条件的值即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18cb981d6dba18d01d27fc034c089339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b212e0d4339cbd3d236a807547ebf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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3 . 若
,且
,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c414f1528d2592c7b16d68bf8760da15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4807bbd1fd50fadf8e4fe54dba43b3fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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解题方法
4 . 已知
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fabdd0baa21ed9898eea727f2ee9459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a2b8dae45cd30a752aedb1ca66c30a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
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名校
解题方法
5 . 正
的边长为1,中心为O,过O的动直线l与边AB,AC分别相交于点M,N,
,
.给出下列四个结论:
①
;
②若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f75a5bbeb0308c3428cc587c6e5b51b.png)
③
不是定值,与直线l的位置有关;
④
与
的面积之比的最小值为
.
其中所有正确结论的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5d70a0d31bf8f5cfbca5e88a23df80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18bf5477ab809cf5b133a045b0ea8e9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d5cce8256cbd50299a26044f05fc086.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e07c611d39260a3160ef7380df0fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f75a5bbeb0308c3428cc587c6e5b51b.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587b693b82241eb9c32cdbb96c209f33.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
其中所有正确结论的序号是
您最近一年使用:0次
6 . 在
中,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459459559720ab5e154a80723c47cc30.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e15cbd7c42d7b15d7ba8d2b28ab8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb75557d217f59ef1f33e8da1ac0d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc2207730238af428cf26f28b856954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459459559720ab5e154a80723c47cc30.png)
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名校
解题方法
7 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e888ea14da893971e13858945bf0cd.png)
_______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2623c0ae0a6a2880abbcb8bb2c483750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e888ea14da893971e13858945bf0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
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8 . 设
,给出下列四个结论:
①不论
为何值,曲线
总存在两条互相平行的切线;
②不论
为何值,曲线
总存在两条互相垂直的切线;
③不论
为何值,总存在无穷数列
,使曲线
在
处的切线互相平行;
④不论
为何值,总存在无穷数列
,使曲线
在
处的切线为同一条直线.
其中所有正确结论的序号是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9cc29e5eda42231b07864342ae3469d.png)
①不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
②不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
③不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c447d258d81765005b59ba0b29ab471b.png)
④不论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c447d258d81765005b59ba0b29ab471b.png)
其中所有正确结论的序号是
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9 . ①
;②
;③
;④
;上述式子的值是
的序号有______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/609f3358a7685112596b616d0c7a7f7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef5d5af3cfe048fa6530ef7de73fc04f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3606cbca397b35710d7e4dfd60665b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faf4ae8d71fedb8b3bdd4b45baf062e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
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解题方法
10 . 在
中,若
,
是锐角,则
的一个取值可以为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20f4c9b9bf9f669e6a21fda6c57830b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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