1、To study and implement the spirit of the two sessions is the primary political task of the educators in 2018. Through the study of the spirit of the two sessions, I have a profound awareness that the key to the prosperity and development of the country lies in the Party, and the key to the all-round
2、 rejuvenation of the nation lies in education. The two sessions were held on March 3, and the two sessions have attracted much attention. The Congress of democracy, unity, harmony, and pragmatism has determined the work of economic and social development in 2018, which is of great significance for f
3、urther promoting scientific development, promoting social harmony, and continuously opening up a new situation for the cause of socialism with Chinese characteristics. At present, the most important political task before us is to concentrate on the two Will spirit study well, carry out well. Reform
4、is still the focus of this years two sessions. Our party should continue to deepen the reform in an all-round way and unswervingly go on, and promote the modernization of the national governance system and governance ability, which requires the Party to improve its governing ability and efficiency a
5、nd raise its work level. The anti-corruption issue is also the focus of more efforts, because in the past year, our country has made great progress on the road of fighting corruption and promoting integrity, and has cracked down on many corrupt officials. To those who do not wholeheartedly for the w
6、elfare of the people of the government personnel heavy blow and warning. And it is precisely because of the vigorous administration of the party and the state that some public funds eat and drink. Corruption and other phenomena have mostly disappeared, so this years deep reform1._.解析：原式tan(7515)tan6
7、0.答案：2tan75tan15_.解析：tan75tan15tan(4530)tan(4530)(2)(2)4.答案：43. 的值为_解析：原式tan(4515)tan30.答案：4tan18tan42tan18tan42_.解析：tan60tan(1842)，所以tan18tan42tan60(1tan18tan42)，tan18tan42tan18tan42来源:tan60(1tan18tan42)tan18tan42.答案：一、填空题1已知tantan2，tan()4，则tantan等于_解析：tan()，4，x.答案：2在ABC中，tanAtanBtanAtanB，则C等于_解析：A
8、BC，tan(AB)，tanC，C.答案：3化简的结果为_解析：原式tan.答案：tan4设tan()，tan，则tan的值是_解析：().tan.答案：5已知tan()7，tan，且(0，)，则的值为_解析：tantan()1，又(0，)，所以.来源:答案：6若tanAtanBtanAtanB1，则cos(AB)_.解析：由tanAtanBtanAtanB1，得1，即tan(AB)1，所以ABk，kZ，所以cos(AB).答案：7已知tan()，tan，则tan的值应是_解析：tantan().答案：8已知tan2，则的值为_解析：由tan2，得tan，所以.答案：来源:二、解答题9已知ta
9、n()3，tan()5，求tan2，tan2.解：tan2tan()()，tan2tan()().10已知tan，tan是方程x23x40的两个根，且，求的值解：由题意，有，来源:tan0且tan0.又因为，所以，(，0)又因为tan()在(，0)内，正切值为的角只有，所以.11已知tanA与tan是关于x的方程x2pxq0的解，若3tanA2tan，求p和q的值解：设ttanA，则tan，由3tanA2tan，得3t，解得t或t2.当t时，tan，来源:p，qtanAtan；当t2时，tan3，p5，qtanAtan6.所以p，q的值为或This years two sessions of
10、the National peoples Congress were held under the leadership of the party Central Committee to hold high the banner, to develop scientifically, to reform and innovate, and to make steady progress. Although this session of the National peoples Congress and the last session of this session of the Chin
11、ese peoples political Consultative Conference were held, they were lively and fruitful. Such words as seeking progress in a steady way, reasonably anticipating, deepening reform, government responsibility, and peoples livelihood construction have become the focus of peoples attention. To sum up, the
12、 main tasks of this year are to stabilize growth, control prices, adjust structure, benefit peoples health, grasp reform and promote harmony. It is necessary to profoundly grasp the objectives, tasks, and work priorities of this years economic and social development, and earnestly unify the thinking and action with the central authorities scientific judgment of the situation. Unified to the central governments major policy-making arrangements, and the implementation of the actual work.
