1 . 求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1025c09a3b71630c2a3fd665be85a8c.png)
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解题方法
2 . 已知
,
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3d15b377e37c9e0fcbfce046148bdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f201f6e84279e80b85f394f4d930ed41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
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3 . 求证:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa937ccb146dae977cb55510f4d5042.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8647d21551f167d68b305179c37ed.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c58a6ee2ea78be2d62f5c182c04326.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f15c3e2158bdc118bb5ef2c9c16b5eb5.png)
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解题方法
4 . 已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca6f73a6945b943d3c7da666521278e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5bec99b0f7da69dd2f6ef8e88c35b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7b915277169254e670ea51b693b9fc.png)
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解题方法
5 . 已知
,函数
,
,若函数值域为
,求常数a,b的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60f9d18e2d9d4e1958ea9b29ba2e7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c8cbc659281e55132c6400b5c8bfc2.png)
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6 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b57d288fd394ba67caec329b6225a3e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b57d288fd394ba67caec329b6225a3e.png)
您最近一年使用:0次
7 . 求证:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9832348964195ee51a1c45801f2c3eb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4d54de2911060359364314af22be54.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad685a7bf2c46a7885168ded59821e5.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb539c22aaa551b7af7b3c41b93fc29.png)
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解题方法
8 . 求下列函数的周期及最大值、最小值:
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77c01c6639bc2986e153774db3a20df.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219b7abdc548bcf6a8855c06386bba6c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/005e6c930c834cf8371d64e3250f3980.png)
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解题方法
9 . 已知
,
,求
,
及
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7fdccadfa7469825f8a5ccbf495c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e3d43f3e7109d1e4173ee4993c9a148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0184abed8ae5c68ddafff2b64faa6bbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f69cdfcdfad387a82d1d9e7890763e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe277f9e5fca165f5e86dba1486592ce.png)
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解题方法
10 . 已知
,且
是第三象限角,你能求出
,
的三角函数值吗?你能求出与
有关的其他角的三角函数值吗?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d33658e09092e727b0035825036fc8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8dd0c52aca1675c17b9a019aa7901e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0e27121a582de019f7d539dbd95114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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