解题方法
1 . 函数
的值域为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ae016aa82559ae875d45f018299e41.png)
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2 . 已知函数
满足
.
的值;
(2)用五点法画出函数
在一个周期上的图象;
(3)根据(2)得到的图形,写出函数
的图象的对称轴方程与对称中心的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04108128425158e44c62533b7fbbae4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7966f0740c2827c8403ac6aa8c371b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)用五点法画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(3)根据(2)得到的图形,写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
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3 . 已知函数
的振幅为2,最小正周期为
,且其恰满足条件①②③的两个条件:①初相为
;②图象的一个最高点为
;③图象与
轴的交点为
.
(1)求函数
的单调递减区间;
(2)若
在
上单调递增,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00299e2356c68a36c3a4dd50d90ced1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c7ae0a07f64c86958ab7997ee09c58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/310f780f4f03699023b1322a1e002539.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea17ec8f211e8be2571fbcce23e04eb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 已知向量
.若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68b6c10f282cd19590a8432a9b486ac.png)
__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d33ee1f52775bf9ba66e0fdf0ecbb35.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30bf2b57a870ffededfd20869e2a271e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68b6c10f282cd19590a8432a9b486ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d33ee1f52775bf9ba66e0fdf0ecbb35.png)
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解题方法
5 . (1)已知
,且
是第二象限的角,求
;
(2)已知
满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320c4027d26d5ab85f9280dc951ea5be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cafacae675ecfac01e621f209dc32dd4.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0919929c63ec1c10f1d8ad6887fef1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
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6 . 已知集合
,那么
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7facfe929a321acdf2ba4588a6791f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 下列各选项中,与
表示同一函数的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45277177aef29b0eb3a06492f8ea342.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 某工厂要建造一个长方形无盖贮水池,其容积为
,深为
,如果池底每平方米的造价为150元,池壁每平方米的造价为120元,水池的长为______ m宽为______ m时,能使总造价最低.最低造价为______ 元.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5e9fdaac7906d04492ea62fff3f20f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36b51b654efcff60d2d640b9b4c4471.png)
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解题方法
9 . 设函数
.
(1)求
的值;
(2)若
,求实数
的值.
(3)在给定的坐标系中,作出函数的图象并写出单调区间;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd98ba47ef24fb845bf3f889bd550d3f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/11/9d062107-559a-4a8b-8367-06107cb1e7b4.png?resizew=204)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32822a106d217ffdec43557a236f786.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e9089e21e10f127e970d8e42e55244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在给定的坐标系中,作出函数的图象并写出单调区间;
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10 . 函数
定义域为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b6f37a59c5b876212b8019ad103684.png)
您最近一年使用:0次