a b c 2 a2 b2 c2 2ab 2ac 2bc

... another A < /b> on B for C of D off To Americans, it is impolite to ask someone about age, and salary A < /b> marry B married C marriage D marrying The boys broke the window when they _ football A < /b> ... salary A < /b> marry B married C marriage D marrying 12 The boys broke the window when they _ football A < /b> played B were playing C had played D are playing 13 “No parking” It means: A < /b> There is no park ... have complain about the dirty smoke from the factory A < /b> B C D He is believed be the best player in our team A < /b> B C D My little daughter is going to being taken to day care center A < /b> B C D If you...

Ngày tải lên: 17/09/2013, 18:10

... vậy, a1< /b> b c1 d = a2 b c2 d2 d1 b1 c1 a1< /b> a1< /b> a2 d1 + b1 c2 d1 − c1 a1< /b> b2 − c1 b1 d2 a1< /b> a2 b1 − c2 b2 1 + a2 1 b2 + a1< /b> a2 d2 a1< /b> c1 d1 + c2 d21 − c2 1 b2 − c1 d1 d2 a2 b1 c1 − b1 c2 d1 + a1< /b> b2 c1 ... + a1< /b> d1 d2 11 (1.13) Khi đó, a < /b> + d = a1< /b> a2 d1 + b1 c2 d1 − c1 a1< /b> b2 − c1 b1 d2 − a2 b1 c1 − b1 c2 d1 + a1< /b> b2 c1 + a1< /b> d1 d2 = a1< /b> a2 d1 + a1< /b> d1 d2 − b1 c1 a2 − b1 c1 d2 = a1< /b> d1 (a2 + d2 ) − b1 c1 ... tính chất quan trọng Tính chất 1.4.1 Giả sử ad − bc = a1< /b> d1 − b1 c1 = a2 d2 − b2 c2 = 1, a < /b> b c d −1 = a1< /b> b c1 d a2 b c2 d2 a1< /b> b c1 d = a1< /b> b c1 d a2 b c2 d2 d1 b1 c1 a1< /b> Khi a < /b> + d = a2 + d Chứng...

Ngày tải lên: 18/06/2016, 10:31

... a2 1 b2 a1< /b> a2 d1 + b1 c2 d1 − c1 a1< /b> b2 − c1 b1 d2 + a1< /b> a2 d  = 2 a1< /b> c1 d1 + c2 d1 − c1 b2 − c1 d1 d2 a2 b1 c1 − b1 c2 d1 + a1< /b> b2 c1 + a1< /b> d1 d2 Khi đó, a < /b> + d = a1< /b> a2 d + b c d − c a1< /b> b − c b ... − a2 b1 c1 − b1 c2 d1 + a1< /b> b2 c1 + a1< /b> d1 d2 = a1< /b> a2 d1 + a1< /b> d1 d2 − b1 c1 a2 − b1 c1 d2 = a1< /b> d1 (a2 + d2 ) − b1 c1 (a2 + d2 ) = (a2 + d2 ) (a1< /b> d1 − b1 c1 ) = a2 + d Tính chất 2. 1 .2 Giả sử {a,< /b> b, ... c2 d2  c1 d1   a1< /b> b a < /b> b d b1   2   =  c1 d1 c2 d2 c1 a1< /b> a < /b> + d = a2 + d2 Chứng minh Thật vậy,       a1< /b> b c1 d1 a2 b c2 d2 14 d1 c1 b1   a1< /b> (2. 1)  a1< /b> a2 b1 − c2 b2 1...

Ngày tải lên: 11/11/2016, 10:13

Ngày tải lên: 15/08/2012, 11:00

Ngày tải lên: 15/08/2012, 11:01

Ngày tải lên: 15/08/2012, 11:01

... (www.hp-vietnam.com) All right reserved Trang web www.hp-vietnam.com c nhiều tài liệu tiếng Anh, trình độ A,< /b> B, C, IELTS TOEFL Copyright 20 05 by Hp Group (www.hp-vietnam.com) All right reserved Trang ... Trang web www.hp-vietnam.com c nhiều tài liệu tiếng Anh, trình độ A,< /b> B, C, IELTS TOEFL Copyright 20 05 by Hp Group (www.hp-vietnam.com) All right reserved Trang web www.hp-vietnam.com c nhiều ... liệu tiếng Anh, trình độ A,< /b> B, C, IELTS TOEFL Copyright 20 05 by Hp Group (www.hp-vietnam.com) All right reserved Trang web www.hp-vietnam.com c nhiều tài liệu tiếng Anh, trình độ A,< /b> B, C, IELTS...

Ngày tải lên: 29/05/2013, 23:20

... represent concrete concepts such as nouns, verbs, adjectives, and adverbs Hiragana: A < /b> phoenetic alphabet, or syllabary (a < /b> set of characters, where each character represents a < /b> syllable) used to ... sentence means "Are you an American?" The word ka is a < /b> particle which makes a < /b> sentence a < /b> question Examples: Anata wa Nihon-jin desu ka (Are you Japanese?) Anata wa Suzuki-san desu ka (Are you ... is a < /b> camera and that over there is a < /b> computer.) Waatamanu-san wa Amerika-jin de Rozenbawa-san wa Doitsu-jin desu (Mr Waterman is American and Mr Rosenbauer is German.) Listen to the sentences...

Ngày tải lên: 06/07/2013, 09:45

... makes most Americans uncomfortable a < /b> them to accept b their accepting c they accepting d they accept b 60 Do any of these designs …………… you? a < /b> attract b attractive c attractiveness d attractively ... pupil a < /b> the b a < /b> c an d no article > b 55 That is a < /b> bag It is on table a < /b> the b a < /b> c an d no article > a < /b> 56 We are in same class a < /b> the b a < /b> c an d no article > a < /b> 57 Your book is the desk a < /b> at b ... appointment a < /b> to cancel b cancel c canceling d canceled a < /b> 10 A < /b> computer is usually chosen because of its simplicity of operation and ease of maintenance its capacity to store information a...

Ngày tải lên: 14/08/2013, 23:26

... Find out your number no yes a < /b> B C D cat cap dog doll apple ant book bag cat cap dog doll auto ...

Ngày tải lên: 19/08/2013, 01:10

... A < /b> accessibly B access C accessible D inaccessible d 19 his highly individual conceptions of music and chaos, John Cage became a < /b> leading figure in avant-garde music A < /b> Such was B Due to C Because ... here are A < /b> reason B reasonable C reasonably D a < /b> reason > b 28 2 Do you feel to this kind of job? A < /b> attractive B attracted C attraction D attract > b 28 3 American women independent A < /b> are ... you have a < /b> costume in your country? A < /b> national B nation C native D nationality >a < /b> 26 7 The weather will be better with showers A < /b> occasion B occasional C occasionally D occasionality > b 26 8...

Ngày tải lên: 23/08/2013, 20:36