2022年初中数学分式化解求值解题技巧大全3

1、learn general secretary on two to learn a strengthening four consci ousnesses important speech cause d a strong reaction i n the country. me, watching red treasure, the origin of building the party back to power, how to strengthen servi ces for the masses, improve party cohesion, fighting to become

2、the grass-roots party members and masses hot topic. grass-roots party organizations two is to strengthen the service of party members and cadres, the pioneer spirit. distribution of grass-roots party organizations in all walks of people, clot hing, shelter, which bel ongs to the nerve endings of the

3、 party organization and comments reputation has a direct perce ption of the masses. strengthen the party ahead of the pedal spirit; strengthe n the party members and cadres success does not have to be me and the first to bear hardships, the last to service spirit to set the partys positive image amo

4、ng the people i s important. grass-roots party organizations two is to cleanse all pe ople not happy not to see stereotypes, establish the honest faithful, diligent faith for the people. no need to avoid mentioning that, some members of ourparty can not stand the money, corrosion of temptation, thin

5、, xu zhou, such abuse and corrupt bribery, malfeasance borers, and rats. two, is to clean up, thin, xu, z hous solution to restore the partys fresh and natural, solid and honest work style. cleansing take, eat, card, undesirable and behaviour, cross, hard and cold, push attitude. grass-roots party o

6、rganizations two is to strengthen the se nse of ordinary party members, participating in consciousness, unity consciousness. for reasons known, members of grass-roots party branches less mobile , less resources, a nd the construction of party organizations have some lag. two studi es, is to focus on

7、 the grass-roots party branches loose, soft, loose problem, advance the party members and cadres, a gang working, hong kong report. strong cleanup actions, style and rambling, presumptuous unqualified party members, pays special attention to party members and cadres joini ng party of thought problem

8、. party building is obtained in the long-term development of our partys historical experience accumulated. two is our party under the new historical conditions, strengthen the partys construction of a new rectification movement. grass-roots party organizations should always catch the hard work, resu

9、lts-oriented. two educational outcomes are long-term oriented and become an important impetus for the work. two should have three kinds of consciousness two study and education, basic learning lies in the doing. only the constitution address the series of party rules, and do solid work, be qualified

10、 party members had a soli d ide ologi cal basis. only the learning and do real unity, to form a learn-learn-do-do the virtuous cycle, and ultimately achieve the fundamental objective of education. this requires that the organizationlearning education, need three kinds of consciousness: one i s to es

11、tablish an integrated awareness. learning and do what car istwo-wheel, bird wings, need to go hand i n hand, one end can be negle cted. communist theoretician and man. only by closely combini ng theory and practice together in order to truly realize their value. learning is the foundation, the found

12、ation is not stong, shaki ng; is the key to net to net thousands of accounts. two education, lay the basis, going to do the key grip, so that the learning and doing back to standard, so that the majority of party members learn learning theory of nutrients, in the doing practice partys purposes. seco

13、nd, to establish a se nse of de pth. learning and do not chu drawn, entirely different, but the organic unity of the whole. two learning education, we nee d to explore integrating learning in do, exhibit do in science. to avoid the learning into simple room instruction, do into a monotone for doing.

14、 should exploration learn in the has do, do in the has learn of education and practice of carrier, makes general grass-roots members can in learn in the has do of achievements sense, i n do in the has learn of get sense, real makes party of theory brain into heart, put for people service concept out

15、side of yu shaped. t hird, to adhere to long-term the awareness. style construction on the road forever, two had to catch the long-term. two study and education, by no means, a ssa ult-style wind-sport, but the recurre nt education within the party. in recent years, the partys mass line education pr

16、actice and three-three special education in grass-roots borne rich fruits, vast numbers of party members and cadres withstood the baptism of the spirit. two greater need to focus on longer hold long-term, to establish and perfect the effective mecha nism of the education, focusing on the creation of

17、 long-term education, strive to make the vast number of party members to maintain their vanguard col or, mai ntain the partys advanced nature and purit y. awareness-raisi ng, antenna s and atmosphere a discussion on how leading ca dres of party members two current, two activity is in full swing up a

18、nd down the country, party cadres as a key minority is both a barometer and impetus. the two meaning enough deep, is to determine the party cadres can resolve to study hard first. in the two in the process, some cadres of himself, standing long, high awareness, that constitution party rules is simpl

19、e, its not w orth bothering some party cadres think speak series has nothing to do with the grass-roots work, water business learning series of spe eches seen as window dressi ng. these lazy, casual, and decadent ideas learning lacks motivation, a serious impediment to two effect. john stuart mill o

20、nce said, only a basic element of human thought patterns change dramatically, human destiny can make great improvement. the same, only party members and 化简求值常用技巧在给定的条件下求分式的值，大多数条件下难以直接代入求值，它必须根据题目本身的特点，将已知条件或所求分式适当变形，然后巧妙求解.常用的变形方法大致有以下几种：1、 应用分式的基本性质例 1 如果12xx，则2421xxx的值是多少 ? 解：由0 x，将待求分式的分子、分母同时除以

21、2x，得原式 =.22221111112131()1xxxx. 2、倒数法例2如果12xx，则2421xxx的值是多少 ? 解：将待求分式取倒数，得42222221111()1213xxxxxxx原式 =13. 3、平方法例3已知12xx，则221xx的值是多少？解：两边同时平方，得22221124,422.xxxx4、设参数法例4已知0235abc，求分式2222323abbcacabc的值 . 解：设235abck，则2 ,3 ,5ak bk ck. 原式 =22222232 353 2566.(2 )2(3 )3(5 )5353kkkkkkkkkkk例5已知,abcbca求abcabc的

22、值 . 解：设abckbca，则,.abk bck cak3cakbk kck k kck，精品学习资料 可选择p d f - - - - - - - - - - - - - - 第 1 页，共 6 页 - - - - - - - - -learn general secretary on two to learn a strengthening four consci ousnesses important speech caused a strong reaction i n the country. me, watching red treasure, the origin of bui

23、lding the party back to power, how to strengthen servi ces for the masses, improve party cohesion, fighting to become the grass-roots party members and masses hot topic. grass-roots party organizations two is to strengthen the service of party members and cadres, the pioneer spirit. distribution of

24、grass-roots party organizations in all walks of people, clot hing, shelter, which bel ongs to the nerve endings of the party organization and comments reputation has a direct perce ption of the masses. strengthen the party ahead of the pedal spirit; strengthe n the party members and cadres success d

25、oes not have to be me and the first to bear hardships, the last to service spirit to set the partys positive image among the people i s important. grass-roots party organizations two is to cleanse all pe ople not happy not to see stereotypes, establish the honest faithful, diligent faith for the peo

26、ple. no need to avoid mentioning that, some members of ourparty can not stand the money, corrosion of temptation, thin, xu zhou, such abuse and corrupt bribery, malfeasance borers, and rats. two, is to clean up, thin, xu, z hous solution to restore the partys fresh and natural, solid and honest work

27、 style. cleansing take, eat, card, undesirable and behaviour, cross, hard and cold, push attitude. grass-roots party organizations two is to strengthen the se nse of ordinary party members, participating in consciousness, unity c onsciousness. for reasons known, members of grass-roots party branches

28、 less mobile , less resources, a nd the construction of party organizations have some lag. two studi es, is to focus on the grass-roots party branches loose, soft, loose problem, advance the party members and cadres, a gang working, hong kong report. strong cleanup actions, style and rambling, presu

29、mptuous unqualified party members, pays special attention to party members and cadres joini ng party of thought problem. party building is obtained in the long-term development of our partys historical experience accumulated. two is our party under the new historical conditions, strengthen the party

30、s construction of a new rectification movement. grass-roots party organizations should always catch the hard work, results-oriented. two educational outcomes are long-term oriented and become an important impetus for the work. two should have three kinds of consciousness two study and educati on, ba

31、sic learning lies in the doing. only the constitution address the series of party rules, and do solid work, be qualified party members had a soli d ide ologi cal basis. only the learning and do real unity, to form a learn-learn-do-do the virtuous cycle, and ultimately achieve the fundamental objecti

32、ve of education. this requires that the organization earning education, nee d three kinds of consciousness: one is to establish an integrated awareness. learning and do what car istwo-wheel, bird wings, need to go hand in hand, one end can be neglected. communist theoretician and man. only by closel

33、y combining theory and practice together in order to truly realize their value. learning is the foundation, the foundation i s not strong, shaking; is the key to net to net thousands of accounts. two education, lay the basis, goi ng to do the key grip, so that the learning and doing back to standard

34、, so that the majority of party members learn learning theory of nutrients, i n the doing practice partys pur poses. second, to establish a sense of depth. learning and do not chu drawn, entirely different, but the organic unity of the whole. two learning education, we nee d to explore integrating l

35、earning in do, exhibit do in science. to avoid the learning into simple room instruction, do into a monotone for doing. should exploration learn in the has do, do in the has learn of education and practice of carrier, makes general grass-roots members can in learn in the has do of achievements sense

36、, in do in the has learn of get sense, real makes party of theory brain into heart, put for peopl e service concept outside of yu shaped. third, to adhere to long-term the awareness. style construction on the road forever, two had to catch the long-term. two study and education, by no means, assault

37、-style wind-sport, but the recurrent education within the party. in recent years, the partys mass line education practice and three-three special education in grass-roots borne rich fruits, vast numbers of party members and cadres withstood the baptism of the spirit. two greater need to focus on lon

38、ger hold long-term, to establish and perfect the effective mechanism of the education, focusing on the creation of long-term education, strive to make the vast number of party members to maintain their vanguard col or, maintain the partys advanced nature and purity. awareness -raisi ng, antennas and

39、 atmosphere a discussion on how l eading cadres of party members two current, two activity is in full swing up and down the country, party cadres as a key minority is both a barometer and impetus. the two meaning enough deep, is to determine the party cadres can resolve to study hard first. in the t

40、wo in the process, some cadres of himself, standing long, high awareness, that constitution party rules is sim ple, its not w orth bothering some party cadres think speak series has nothing to do with the grass-roots work, water business learning series of speeches se en as window dressi ng. these l

41、azy, casual, and decadent ideas learning lacks motivation, a serious impediment to two effect. john stuart mill once said, only a basic element of human thought patterns change dramatically, human destiny can make great improvement. the same, only party members and2 31,1kkabc原式 =1.abcabc5、整体代换法例6已知1

42、13,xy求2322xxyyxxyy的值 . 解：将已知变形，得3,yxxy即3xyxy原式 =2()32( 3)333.()23255xyxyxyxyxyxyxyxyxyxy例：例 5. 已知ab0，且满足aabbab2222，求abab3313的值。解：因为aabbab2222所以()()abab220所以()()abab210所以ab2或ab1由ab0故有ab1所以abababaabbab33221313()()113312222()aabbabaabbab()()ababababababab22331133113311评注：本题应先对已知条件aabbab2222进行变换和因式分解，并由

43、ab0确定出ab1，然后对所给代数式利用立方和公式化简，从而问题迎刃而解。6、消元代换法例7已知1,abc则111abcababcbacc. 解：1,abc1,cab原式 =111111abababab abbaabab精品学习资料 可选择p d f - - - - - - - - - - - - - - 第 2 页，共 6 页 - - - - - - - - -learn general secretary on two to learn a strengthening four consciousnesses important speech caused a strong reactio

44、n in the country. ime, watching red treasure, the origin of building the party back to power, how to strengthen services for the masses, improve party cohesion, fighting to become t he grass-roots party members and masses hot topic. grass-roots party organizations two is to strengthen the servi ce o

45、f party members and cadres, the pioneer spirit. distribution of grass-roots party organizations in all walks of people, clothing, shelter, which belongs to the ner ve endings of the party organization and comments reputation has a direct perception of the masses. strengthen the party ahead of the pe

46、dal spirit; strengthen t he party members and cadres success does not have to be me and the first to bear hardships, the last to service spirit to set the partys positive image among the people is important. grass-roots party organizations two is to cleanse a ll people not happy not to s ee stereoty

47、pes, establish the honest faithful, diligent faith for the people. no need to avoid mentioning that, some members of our party can not stand the money, corrosion of temptation, thin, xu zhou, such abuse and corrupt bribery, malfeasance borers, and rats. two, is to clean up, thin, xu, zhous sol ution

48、 to restore the partys fresh and natural, soli d and honest work style. cleansing take, eat, card, undesirable and behaviour, cross, hard and cold, push attitude. grass-roots party organizations two is to strengthen t he se nse of ordinary party members, participating in consciousness, unity conscio

49、usness. for reasons known, members of grass-roots party branches less mobil e, less resources, and the constructi on of party organizations have some lag. two studies, is to focus on the grass-root s party branches loose, soft, l oose problem, advance the party members and cadres, a gang working, ho

50、ng kong report. strong cleanup actions, style and rambling, pre sumptuous unqualified party members, pays spe cial attention to party members and cadre s joining party of thought problem. party buil ding is obtained in t he long-term development of our partys historical experie nce accumulated. two

51、is our party under the new historical conditions, strengtheconstruction of a new rectification movement. grass-roots party organizations should always catch the hard work, results-oriented. two educational outcomes are long-term oriented and become an important impetus for the work. two should have

52、three kinds of consciousness two study and education, basic lear ning lies in the doi ng. only the constitution address the series of party rules, and do solid work , be qualified party members had a solid ideological basis. only the learning and do real unity, to form a learn-learn-do-do the virtuo

53、us cycle, and ultimately achieve the fundamental objective of education. this requires that the organization重庆书之香教育chong qing education learning education, need three kinds of consciousness: one i s to establish an integrated awareness. lear ning and do what car istwo-wheel, bird wings, need to go h

54、and in hand, one end ca n be neglected. communist theoretician and man. only by closely combining theory and practice together in order to truly realize their value. learning is the foundation, the foundation i s not strong, shaking; is the key to net to net thousands of accounts. two education, lay

55、 the basis, goi ng to do the key grip, so that the learning and doing back to standard, so that the majority of party members learn learning theory of nutrients, i n the doing practice partys pur poses. second, to establish a sense of depth. learning and do not chu drawn, entirely different, but the

56、 organic unity of the whole. two learning education, we nee d to explore integrating learning in do, exhibit do in science. to avoid the learning into simple room instruction, do into a monotone for doing. should exploration learn in the has do, do in the has learn of education and practice of carri

57、er, makes general grass-roots members can in learn in the has do of achievements sense, in do in the has learn of get sense, real makes party of theory brain into heart, put for peopl e service concept outside of yu shaped. third, to adhere to long-term the awareness. style construction on the road

58、forever, two had to catch the long-term. two study and education, by no means, assault-style wind-sport, but the recurrent education within the party. in recent years, the partys mass line education practice and three-three special education in grass-roots borne rich fruits, vast numbers of party me

59、mbers and cadres withstood the baptism of the spirit. two greater need to focus on longer hold long-term, to establish and perfect the effective mechanism of the education, focusing on the creation of long-term education, strive to make the vast number of party members to maintain their vanguard col

60、 or, maintain the partys advanced nature and purity. awareness -raisi ng, antennas and atmosphere a discussion on how l eading cadres of party members two current, two activity is in full swing up and down the country, party cadres as a key minority is both a barometer and impetus. the two meaning e