1 . 已知
,
,
,求:
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3955978f611908709aa2045b897b5f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d9e0be83bc40656ef3b60e2b2df75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1072a11db256b9d6badc4f9034c22c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74876891d38a5a79fe895cd216c9b9ac.png)
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2 . 已知函数
(
,
,m为常数)的最小正周期为
,且函数
在区间
上有两个零点
.
(1)求实数m的取值范围;
(2)用含m的式子表示
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e735f0a72d1df6e39e2c854cd148cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
(1)求实数m的取值范围;
(2)用含m的式子表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d521f8d021b20757d7a68107fcef1d.png)
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解题方法
3 . 在平面直角坐标系中,角
与角
均以
轴非负半轴为始边,它们的终边关于
轴对称,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994d6e7f47b3b98aa848c05d0af8f65e.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4306b944f46c6f8820960a57059a393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994d6e7f47b3b98aa848c05d0af8f65e.png)
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4 . 已知函数
.
(1)求函数
在
上的最大值与最小值;
(2)已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a190bb96411ad552aa9c9640ae6cb3.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfbe282b1156382b8175d9c8403f9642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc26989dcfd6f0f0a1541007ec9c3a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae04535ed977a657d76dd9af17503684.png)
您最近一年使用:0次
5 . (1)计算:
;
(2)已知
都是锐角,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91277c263a11add10fe2f656a401fd86.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f05822cfd3783b5dc53570ba669efa3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ebf0e35c7d783514e464c4eaf5f6a6.png)
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11-12高一上·陕西·期末
6 . (1)化简:
;
(2)若
、
为锐角,且
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902349feef07182c32c90599cae57bce.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab92c69395d938b7ee0032bb95fc93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd2c3e1625bd401ce2eae2f51d189f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
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7 . 已知
,
,其中α、β都是钝角.求:
(1)cosα的值;
(2)tan(α-β)的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d96344bb97a4e5a6362a188b764d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa2d2038f67cc05c544545bff2f3d504.png)
(1)cosα的值;
(2)tan(α-β)的值
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名校
8 .
,
,且
、
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9489ce3280045be8d3eff08fa24ca1f9.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a92c16e542c1841dec83049034c4a0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d8bc5d9d7741ae3fb6c534f1246139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27f06dea17501a3039214018b261452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9489ce3280045be8d3eff08fa24ca1f9.png)
您最近一年使用:0次
名校
解题方法
9 . 在
中,角
、
、
的对边分别是
、
、
,若
,
,
,则边
的长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1dffdebbc8f10cbf0dc0affbcbe9f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
10 . 已知
,若
且________ ,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba80eb5253bed4d4834ebbf39980424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1322ec6e40bbda261622436686065169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89071cb103a22849f08fe55b85fed33.png)
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