解析几何的经验公式及小结论秒解高考选择题

1、rapid development of the market economy environment to explore public servants 'duty consumption monetization reform hasprovided a good foundation. Thesocialization of rear service work has been launched, and rapid progress insome places and departments, duty consumption monetization of carrier

2、and appr oach to management hasbee n resolved. Thir d, in recent years, exploring the monetization of duty consumption has made some progress, have gained some experience and can provi de reference to thecompre he nsive reform of the system of public serva nts ' dutyconsumption further. Implemen

3、ting a n "honest canteen", standar dize official entertaining management; enhancing the telecommunication expense management; eliminationof County travel andcountryside subsi dies; research "village officials" capitalization management of corporate spendi ng, and so on. Finally,

4、group .18 session tobe he ld inBeiji ng from November 9, 2013 to 12th. 35 years ago blew the third plenary se ssion of the reform and opening up in the spring breeze, changed, affect the world; today,35 years later, in the eye s of the nation and t he world expect, again to reform mark China,ushered

5、in the 18sessi on. XI General Scretary pointedout thatChina's reform has entered acrucial peri od and t he Sham Shui PoDistrict, must bebased on greaterpolitical courage and wisdom, loseno time indeepeni ng reform in important fields.Dares tocrack a hard nut, dares to question the Rapids, which

6、dares to break the barrierof ideas, anddare to benefit cure barriers. Deepening reform andopeni ng up i s on schedule to achieve institutional safeguards of the moderately well-off. Under the "five in one" theGeneral layout of socialist moder nization requirement s, 18 session of thedecisi

7、on was a "five in one" and the improvement of overall schemeof reform, will promote an integrated a nd coordinated economic,ecologicalcivilization constructionof the five reforms and the party'sconstruction in the area of institutional reform.The "five in one" programme is to

8、 achiev e a com prehe nsive reform of institutional guarantees for objectives of build awell-off society, thesmooth progre ss of theconstruction of a well-off society and reform the objectives of theprogramme.One, holding time andplace importanceon November 9, 2013 to the 18 session of the 12th Beij

9、ingsince 1978,35, havebee n 7 ple nary session, ea ch time on major issues of political and economic life of the countryhas made importantdeployment. In accordance with PRC politicalpractice, often at everysessi onof the CPC Central Committee ina ple nary session was held immediately after theparty&

10、#39;s Congress, on the theme "personnel", discussingelection Central's top leaders, such as theelecti on of the Standing Committee of thepoliti cal Bureau, through the CentralCom mittee members,decisions,such as members of theCentral MilitaryCommissi on.Thesecondplenary session, is hel

11、d in two sessio ns before the general election, mai nly to discuss anew State personnel issues. But by the third经验公式及小结论秒解几选填题椭圆类1、椭圆 x2y21 (a b 0) 的左右焦点分别为F1，F 2，点 P 为椭圆上任意一点F1 PF2，a2b2则椭圆的焦点角形的面积为S F1PF2b2 tan22、AB是椭圆 x2y21的不平行于对称轴的弦，M, y0 )为 AB的中点，则 kkb2，a2b2a2( x0OMAB即 KABb 2 x0，如果焦点在 Y 轴，则 有 kA

12、Ba2 x2a2y02y2b3、设椭圆 x2y21（ a b 0）的两个焦点为F1、F2,P（异于长轴端点）为椭圆上任意一点，a2b2在 PF F 中，记F1 PF2,PF1 F2,F1F2P，则有since.12sinsina4 、设 P 点是椭圆x2y2 1 （ a b 0）上异于长轴端点的任一点,F 1、 F2为其焦点记关a2b2F1 PF2，则 (1) | PF1 | PF2 |2b2.(2)S PF1F2b2 tan1 cos2双曲线类1 、双曲线 x2y21 （ a 0,b o）的左右焦点分别为F1， F2，点 P 为双曲线上任意一点a2b2F1 PF2，则双曲线的焦点角形的面积为

13、S F1PF2b2co t22 AB 是双曲线 x2y21 （ a0,b 0）的不平行于对称轴的弦，M(x0 , y0 ) 为 AB 的中点，则a2b2plenarysessi on, each session of the Central Committee of national institutions andpersonnel problems havebeen arranged, you can concentrate on national devel opment and reforms.Previous plenary session is often brande d wit

14、ha central leading colle ctive, oftenby looking at the third plenum of the initiative t o found the currentcentral leadershipcollective gover nancecharacteristics.From the analysis of theprocess of economic reform inChi na,plenary sessi on, 12 session, 14, 16 ple nary session have programmatic meani

15、ng , respectively, marking the fourstages of China's economic reform, and that the start-upphase of reform, reform, construction pha se and perfecting the Socialist market economy framework stage of socialist market economy.Previous plenary session topics proposed to the thirdplenarysessi on of

16、"taking class str uggle as t he key link," shifted to socialist modernization;12 session marked thecha nge from rural to urban, eplannedcommodity economy;13 session at a time when both the ol d and thenew system change, governance a nd re ctify the economicorder ; 14 . Fair and efficient a

17、nd authoritative Socialist judicial system, safeguard thepeople's interests.Legal authority touphol d theConstitution,deepening the reform of administrative law enforcement, ensure t hat the right to exercisejudicialpow er indepe nde ntly and impartially accordi ng to law the pr ose cution,perfe

18、cting the running mechanism of judicialpower, impr ove the system of judicialprotecti onof human rights.Ple nary session, Affairs the right to adhere to the system, and let the people authority to let the power run in the Sun, is shut upin a cage of thesystem power policy. Decisi on S cience, im ple

19、mentation shouldbe constructe d strong, supervise the running of powerful system, improve the system of punishing and preventing corruption, promoting political integrity,and strive to achievecadre s ' honest ascientific and effective coordinationof power restriction and mechanisms to strengthen

20、 anti-corruption institutional innovation and institutional protection, sound improvement style normal system. Plenary se ssi on, buil ding a socialist culture inChi na, enha nci ng national cultural soft power, mustadhere to the orientation of advanced Socialist culture, adhere t o the development

21、of Socialist culture with Chine se characteristics, a dhere to the people-centred work -oriented, further deepening reform of culture.o improve the cultural management system, establish and improve the modern market system and building moder n public cultural service system, improve the levelof cult

22、ure opening. Ple nary session, achieving development results moreequitable benefit of all peopl e, we mustspeed up reform of social programs and solve the issues of concern to the peopl e the mostdirect and real interest, and better meet the needs of thepeople.o deepen educatirapid development of th

23、e market economy environment to explore publi c servants 'duty consumption monetization reform hasprovided a good foundation. Thesocialization of rear service work has been launched, an d rapid progress insome places and departments, duty consumption monetization of carrier and appr oach to mana

24、gement has been resolved. Thir d, in recent years, exploring the monetization of duty consumption has made some progress, have gained some experience and can provi de reference to thecompre he nsive reform of the system of public serva nts ' dutyconsumption further. Implementing a n "honest

25、 canteen", standar dize official entertaining management; enhancing the telecommunication expense management; eliminationof County travel andcountryside subsi dies; research "village officials" capitalization management of corporate spendi ng, and so on. Finally, group .18 session tob

26、e he ld inBeiji ng from November 9, 2013 to 12th. 35 years ago blew the third plenary se ssion of the reform and opening up in the spring breeze, changed, affect the world; today,35 years later, in the eye s of the nation and t he world expect, again to reform mark China,usheredin the 18sessi on. XI

27、 General Se cretary pointedout thatChina's reform has entered acrucial peri od and t he Sham Shui PoDistrict, must bebased on greaterpolitical courage and wisdom, loseno time indeepeni ng reform in important fields.Dares tocrack a hard nut, dares t o question the Rapids,which dares to break the

28、barrierof ideas, anddare to benefit cure barriers. Deepening reform andopeni ng up i s on schedule to achieve i nstitutional safeguards of the moderately well-off. Under the "five in one" theGeneral layout of socialist moder nization requirement s, 18 session of thedecision was a "fiv

29、e in one" and the improvement of overall schemeof reform, will promote an integrated a nd coordinated economic,politi cal, cultural, social andecologicalcivilization constructionof the five reforms and the party'sconstruction in the area of institutional reform.The "five in one" p

30、rogramme is to achiev e a com prehe nsive reform of institutional guarantees for objectives of build awell-off society, thesmooth progre ss of theconstruction of a well-off society and reform the objectives of theprogramme.One, holding time andplace importanceon November 9, 2013 to the 18 session of

31、 the 12th Beijingsince 1978,35, havebee n 7 ple nary session, ea ch time on major issues of political and economi c life of the countryhasmade importantdeployment. In accordance with PRC politicalpractice, often at everysessi onof the CPC Central Committee ina plenary session was held immediately af

32、ter theparty's Congress, on the theme "personnel", discussingelection Central's top leaders, such as theelecti on of the Standing Committee of thepoliti cal Bureau, through the CentralCommittee members,decisions,such as members of theCentral MilitaryCommissi on.Thesecondplenary ses

33、sion, is held in two sessions before the general election, mainly to discuss anew State personnel issues. But by the thirdKOM K ABb2 x0 ，即 K ABb 2 x0a2 y0a 2 y03、设 P 点是双曲线 x2y21（ a 0,b 0）上异于实轴端点的任一点,F 1、 F2 为其焦点记a2b2F1 PF2，则 (1) | PF1 | PF2|2b2.(2) S PF1F2b2 cot1cos24、渐近线的夹角 2，（焦点在夹角内，则离心率为 esec ）渐近

34、线是双曲线的定性线，由焦点向渐近线引垂线，垂足必在相应的准线上，反之，过渐近线与准线的交点和相应的焦点的连线，必垂直于该渐近线。焦点到相应渐近线的距离等于双曲线的虚半轴长b抛物线类（ 1）若AB是抛物线y22px(p0)A(x1, y1)，B(x2, y2)，的焦点弦（过焦点的弦） ，且xx12p224 ， y1y2则：p 。（ 2）已知直线 AB 是过抛物线 y22 px( p0) 焦点 F，求证：11AFBF为定值。（ 3）若 AB是抛物线 y22px(p0)的焦点弦，且直线AB2 PAB的倾斜角为 ，则sin2（ 0）。（ 4）中点弦求斜率公式设 AB是抛物线 y22 px 的不平行于对

35、称轴的弦，M(x0 , y0 ) 为 AB 的中点则 kpy0三类曲线通用公式求弦长公式l1k 2x1x 2(1k 2 )(x1x 2) 24 x 1 x 2（消y）11|y 1y 2|(11)(y 1y2)24 y 1y 2 （消x）k 2k 2=1k 2aplenarysessi on, each session of the Central Committee of national institutions andpersonnel problem s have been arranged, you can concentrate on national devel opme nt a

36、nd reforms.Previous plenary session is often brande d with a central leadi ng colle ctive, oftenby looking at t he third ple num of t he initiativeo found t he currentcentral leadershipcollective gover nancechara cteristics.From the analysis of theprocess of economic reform inChi na, plenary sessi o

37、n, 12 session, 14, 16 ple nary session hav e programmatic meaning , respectively, marking the fourstages of China'seconomic reform, and that the start-uppha se of reform, reform, construction pha se and perfecting the Socialist market economy framework stage of socialist market economy.Previous

38、ple nary session topics proposed to the third plenarysessi on of "taking class str uggle as t he key l ink," shifted to socialist modernization;12 session marked thecha nge from rural to ur ban, establi she d with public ow nership as t he Foundation of aplannedcommodity economy;13 session

39、 at a time when both the ol d and thenew sy stem cha nge, governance a nd re ctify the economicorder ; 14 . Fair and efficient and authoritative Socialist judicial system, safeguard the people's interests.Legal authority touphol d the Constitution, deepeni ng the reform of administrative law enf

40、orcement, ensure t hat the right to exercisejudicial pow er indepe nde ntly and impartially accordi ng to law the pr ose cution, perfecting t he running mechani sm of judicialpow er, impr ove the system of judicialprotecti on of human rights.Ple nary session, Affairs the right to adhere to the syste

41、m, and let the peopleauthority to let the power run in the Sun, is sh ut upin a cage of thesystem power policy. Decisi on S cience, im plementation shouldbe constructe d strong, supervise the running of powerful system, improve the system of punishing and preventing corruption, promoting political i

42、ntegrity,and strive to achievecadre s ' honest a nd Government integrity, clea n politics.o form ascientific and effective coordinationof power restriction and mechanisms to strengthen anti-corruption institutional innovation and institutional protection, sound improvement style normal system. P

43、lenary se ssi on, buil ding a socialist culture inChi na, e nha nci ng national cultural soft power, mustadhere to the orientation of advanced Socialist culture, adhere t o the development of Socialist culture with Chine se characteristics, a dhere t o the people-centred work -oriented, further deep

44、ening reform of culture.o improve the cultural management system, establish and improve the modern market system and building moder n publi c cultural service system, improve the levelof culture opening. Ple nary session, achieving development re sults moreequitable benefit of all peopl e, we mustsp

45、eed up reform of social program s and solve the issues of concern to the pe opl e the mostdirect and real interest, and better meet the needs of thepeople.o deepe n educati on reform, improve instituti onal me cha nisms for theep焦半径： r1e cos（x2243） y，和过原点的直线ymx 的交点为P、 Q，则 OP 与 OQ 之积是已知圆（ C）、5B、 1 m2A 、 1