ĐỀ LUYỆN THI HSG SỐ 2 (School year: 2011-2011) docx

Ngày tải lên: 20/08/2013, 11:10

... (2 iểm) xxxA xx xx x xx x xx x xxx A =+= + + + + + ++ + ++ = 22 )2( )2) (2( . 2 222 2 24 : 2 )24 ) (2( 33 3 3 33 3 3 3 3 2 3 3 2 3 3 3 2 33 Câu 2 : ( 2 điểm) a- mmmmmmm >++=+=++= 0 2 1 ) 2 1 (21 224 )1( 22 22/ b- M 2 =(x 1 -x 2 ) 2 =( x 1 +x 2 ) 2 -4x 1 .x 2 =4(m+1) 2 - ... x 1 +x 2 ) 2 -4x 1 .x 2 =4(m+1) 2 - 4(4m-m 2...

Ngày tải lên: 20/09/2013, 14:10

... x = +− . Ta đi chứng minh 2 2 33. 12 x x x ≥ − . Thật vậy áp dụng bất đẳng thức Cauchy cho 3 số ta có () ()() () 3 22 2 2 22 22 2 2 2 2 21 1 8 21 21 1 327 23 3 1 12 33 xxx xx xx x xx xx x ⎛⎞ +− ... () () () () 2 4 22 345 1 1log log 1 2 x x ax x ⎧ −≥ ⎪ ⎨ ⎪ +−≥ + ⎩ () ( ) () () () () () 4 22 2 4 22 4 4 2log2log log 1 log 2 log 1 21 1 * 22...

Ngày tải lên: 06/11/2013, 20:15

... Deal *MMU'++*"+*'M**&+MVVM'M&BV'"MM'*, 24 Ôn Thi Tốt Nghiệp THPT năm 20 10 - THERE IS A WILL - THERE IS A WAY! Đề 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 D A C A C B C A A B C B C A B A A D 2 A A B B C A B ... A A 20 D B D C B C D C C B D B C A C B C 21 A B A D C C C C A C B C A D A A B...

Ngày tải lên: 08/07/2014, 03:00

... more likely to occur in conifers than in hardwoods; slash-covered or brushy areas are ĐỀ LUYỆN THI HSG – SỐ 16 Chọn phương án (A,B,C hoặc D)ứng với từ có phần nguyên âm đươc gạch chân có cách ... an entrance exam this year. A. Perhaps we don’t have to take an entrance exam this year. B. We mustn’t take an entrance exam this year. C. We mightn’t take an entrance exam this year....

Ngày tải lên: 25/07/2014, 20:20

... 1B-2A-3C-4A-5A-6A-7C-8C-9C-10A-11D-12A-13D-14C-15A-16C-17A-18A-19B-20D-21A-22D-23C-24C-25A-26B-27C- 28B-29D-30C-31B-32D-33D-34D-35C-36A-37A-38B-39C-40A-41B-42A-43B-44D-45A-46C-47C-48A-49D-50B-51A-52A- 53C-54B-55A-56D-57C-58D-59A-60B-61B-62B-63D-64C-65A-66C-67D-68A-69B-70D-71A-72C-73C-74D-75B-76A-77B- 78C-79B-80D 1 ĐỀ LUYỆN THI HSG – SỐ 15 Chọn phương án (A,B,C hoặc D)ứng với...

Ngày tải lên: 25/07/2014, 20:20

... 58B/ 59A/ 6OA/ 61B/ 62D/ 63B/ 64A/ 65D/ 66C/ 67A/ 68B/ 69C/ 70C/ 71B/ 72A/ - - 1 ĐỀ LUYỆN THI HSG – SỐ 14 QUESTIONS 1 - 5: Choose one option A, B, or D corresponding to the whose main stress ... ago. 66. Without this treatment, that patient would have died. A. If that patient didn't followed this treatment he would have died. B. If that patient hadn’t undergone this...

Ngày tải lên: 25/07/2014, 20:20

... -5- -1- ĐỀ LUYỆN THI HSG – SỐ 13 I/ PHẦN NGỮ ÂM: 1. a. current b. turn c. fun d. under 2. a. further b. fertile ... 51. I’ve done next to nothing today. a. I’ve done close to nothing today. b. I’ve hardly done anything today. c. I have to do nothing today. d. I’ve done nothing next today. 52. Much ... He acts as if nothing ma...

Ngày tải lên: 25/07/2014, 20:20

... 1 ĐỀ LUYỆN THI HSG – SỐ 12 Choose the word whose underlined part is pronounced differently. 1. A debris ['debri:] ... the B. others C. another D. other 12 - If you allow someone to do something, you let them do something or give permission. - If you make someone do something, you say ‘you have to do it’; ... of 124 . I'd rather walk_________ a bus. A. than catc...

Ngày tải lên: 25/07/2014, 20:20

... her mother. D. She fainted and then she heard the news of the death of her mother. ĐỀ LUYỆN THI HSG – SỐ 11 Mark the letter A, B, C or D on your answer sheet to indicate the word that differs ... upbringing can give it the ability to do outstandingly well. Some think that it is impossible to develop genius and say that it is simply something a person is born with. Others, howe...

Ngày tải lên: 25/07/2014, 20:20

... concentration. Television gets bad ( 64)….as far as children are concerned, mainly ĐỀ LUYỆN THI HSG – SỐ 10 Chọn phương án ( a hoặc b, c, d) chọn từ có phần gạch dưới được phát âm khác với ... 23. His boring speech made everybody fall asleep. There’s…….new in it. a. everything b. nothing c. something d. anything 24. I have written her 3 letters, but she hasn’t answered…….them....

Ngày tải lên: 25/07/2014, 20:20

... its lowest population level? a. 196 6 b. 195 7 c. 195 6 d. 195 1 59. The author mentions all of the following as causes of declines in population growth after 195 7 EXCEPT a. people being better ... its lowest population level? a. 196 6 b. 195 7 c. 195 6 d. 195 1 59. The author mentions all of the following as causes of declines in population growth after 195 7 EXCEPT a. families wer...

Ngày tải lên: 25/07/2014, 20:20

... Page 1 7/16 /20 11 ĐỀ LUYỆN THI HSG – SỐ 2 I. Find out the word which has the main stress in the second syllable. 1. A. refugee B. referee C. employee D. committee 2. A. follow ... go D. spare 20 . A. fare B. expense C. cost D. money 21 . A. give B. pay C. afford D. have 22 . A. decision B. mind C. own D. head 23...

Ngày tải lên: 25/07/2014, 20:20

... Specter in the New York Times a few years ago. The LuyÖn thi HSG 2007- KiÒu TÝnh 1 ĐỀ LUYỆN THI HSG SỐ 3 (School year: 2011-2011) Question I: Pick out the word with the underlined ... maker______ knows how to repair all sorts of things. A. which B. who C. whose D. where 17 . The weather this summer is ______. LuyÖn thi HSG 2007- KiÒu TÝnh 4 6. ______...

Ngày tải lên: 27/07/2014, 10:20

... thi HSG 20 07- KiÒu TÝnh 6 LuyÖn thi HSG 20 07- KiÒu TÝnh 1 ĐỀ LUYỆN THI HSG SỐ 2 (School year: 20 11 -20 11) Question I: Pick out the word with the underlined part ... "This picture is really nice", said my uncle.  My uncle said 2. Barbara is the best tennis player in the club. LuyÖn thi HSG 20 07- KiÒu TÝnh 6...

Ngày tải lên: 27/07/2014, 10:20