Bài tập Đại số lớp 8 nâng cao (chương I, II)
... -2x - x - x 1 3x - x 24 24 + 3. Cho 4a 2 + b 2 = 5ab và 2a > b > 0 Tính giá trị biểu thức P = 22 b- 4a ab 4. Tìm các số nguyên x để 16 16x - 8x 4x - x 16 - x 2 34 4 ++ có giá trị nguyên 5. ... A = 4x 2 + 4x + 11 b. B = (x - 1) (x + 2) (x + 3) (x + 6) c. C = x 2 - 2x + y 2 - 4y + 7 1 4. Tìm giá trị lớn nhất của các biểu thức a. A = 5 - 8x - x 2 b. B = 5 - x 2 + 2x - 4y 2 - 4y 5. ... thức: f(x) = x 19 94 + x 1993 + 1 cho: a. x - 1 b. x 2 - 1 c. x 2 + x + 1 4. 1. Xác định các số a va b sao cho: a. x 4 + ax 2 + b chia hết cho: i. x 2 - 3x + 2 ii. x 2 + x + 1 b. x 4 - x 3 -...
Ngày tải lên: 19/06/2013, 01:26
bai tap tieng anh lop 8
... more,comfort able than__ the other one. (comfortable) 3 I think this shop is…………………………… that one. (good) 4 The restaurant is………………………………… the cafe, (expensive 5 Simon's ……………………….Mark, (old) 6 I think ... was…………………………………. mine, (bad) 13 This film is ……………………………the one you wanted to see. (interesting) 14 The journey is …………………………………… I thought, (long) 15 This lesson is…………………………………… the last one....
Ngày tải lên: 04/09/2013, 17:10
Bài tập tiếng Anh lớp 12
... ballet, emerged as an exhibition sport at the Olympic Games from 1 948 to 1968, then debuted as a full medal sport at the 19 84 Olympic Games in Los Angeles. It is open only to women, with medals ... was considered an official sport tournament at A. the 1 948 Olympic Games B. the 1968 Olympic Games C. the 1980 Olympic Games D. the 19 84 Olympic Games 37. Synchronised swimming is a kind of water ... furniture in our living room. A. is too much B. is too many C. are too much D. are too many 21. In 1 941 , the AAU officially accepted synchronized swimming as a ……… sport for team events. A. competition...
Ngày tải lên: 18/10/2013, 00:15
Bài tập tiếng Anh lớp 12 - Bài 11
... information. 41 . a. contribute b. gather c. collect d. gain 42 . a. Make b. Set c. Take d. Pick 43 . a. discuss b. encourage c. suggest d. define 44 . a. spend b. apply c. train d. waste 45 . a. a ... the d. no article 46 . a. explore b. explorer c. exploration d. explorative 47 . a. inquire b. tell c. require d. ask 48 . a. submitted b. handed c. sent d. communicated 49 . a. inhale b. breathe ... search for well-researched material that can help you grow. We should (4) ______ our children to read more books and (44 ) ______ less time watching TV. Some people have commented that this...
Ngày tải lên: 24/10/2013, 18:15
BÀI TẬP TOÁN ĐẠI LỚP 10 NÂNG CAO VỀ PHƯƠNG TRÌNH , BIỆN LUẬN
... BÀI TẬP TOÁN ĐẠI CHƯƠNG LỚP 10 NÂNG CAO Bài 1. giải các phương trình sau : a) 3x 2 +2/4x-1 = x+3 b) x 2 +-3x+2/3 = 2x -1 c) 3x 2 +2/4x = 3x-5 d) 2x-10/x2+1 = 4 . e)√x2+1-2x ... . e)√x2+1-2x = 3x+1 f) √x2-1+4x = 2x +4 g)√x-3x =5x+1 h) √5x+3 =√3x-7 i)√x 2 -3x+1= √4x 2 -1 k) √x 2 +1 =√2x-3 l)√2x 2 -5x-3 =√x 4 +2x 2 -3 m)√x 2 -4x+2 =√3x 4 -2x+1 n)√x 2 -2x+3 = √x 4 -2x 2 +1 o) | 2x+3|=|3x-1| ô)|3x+2|-2= ... |x-1| ơ)|x+1|=3-2x p)|2x+8|-11=2x-3 q)|x 2 +3x -4| =|x-2| r)|x 2 -2x+1|= x-2 s)|2x 2 +3x-2| =|x 2 +x-2| t)|3x 2 -2x+1| +2x-3= x 2 -2x+3 x)|x 4 +2x 2 -1|-3x+1=x 2 +2x-3 y)|2x 4 -2x 2 +x-1|= x 2 +2x-3 . Bài 2. giải và biện...
Ngày tải lên: 29/10/2013, 07:11
bai tap tieng anh lop 5
... Exercise 4 . Complete the dialogue. a. Daisy : Hello, Lee. (1) are you ? Lee : I’m very (2) , thank you. How (3) you? Daisy : (4) , thanks. Lee, This is Peter. (5) ... e m i r 4. E i n d r f 5. N c h f e r Exercise 2. Read and complete the sentences. 1. Mai is from Viet Nam. She is Vietnames. 2. LiLi is from She is 3. Peter is from He is 4. Linda is ... ? 4. Peter / America / American ? ? Exercise 6. Reorder to make sentences. 1. Linda / my / is / name. 2. Canberra / from/ am / I . 3. Meet / Peter / you / to / nice 4. Name...
Ngày tải lên: 31/10/2013, 01:11
Tài liệu BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) P4 doc
... sentence. 7. I (come) and (see) you before I leave here. BT TIẾNG ANH 10 - BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) P4 VII. Give the right forms of the verbs in brackets: Past tenses. ... rain (stop). 2. I (stay) here until he (answer) me. 3. Wait until I (catch) you. 4. She (not come) until you (be) ready. 5. Miss Helen (help) you as soon as she (finish) that ... (visit) England in 1970. 3. When John and I got to the theatre, the movie (start) already. 4. Before Alice (go) to sleep, she (call) her family. 5. When the phone (ring), I (have) dinner....
Ngày tải lên: 24/12/2013, 10:18
Tài liệu BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) docx
... I (see) that film several times because I like it. BT TIẾNG ANH 10 - BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) I. Supply the correct verb forms: The simple present ... for two hours, but she (not come) yet. 3. They (live) in Ho Chi Minh City since 1975. 4. She (read) all the books written by Charles Dickens. How many books you (read)? 5. He (not, ... seldom (eat) before 6:30. 3. Look! A man (run) after the train. He (want) to catch it. 4. The Sun (set) in the West. 5. It (be) often hot in summer. ...
Ngày tải lên: 24/12/2013, 10:18
Tài liệu BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) P2 pptx
... (learn) English? 13. I (be) sorry. I (forget) that girl's name already. 14. I (wait) for the manager for two hours. 15. You (ever, see) a lion? IV. Supply the ... 1. I (see) her before. 2. I (see) her last year. 3. Tom never (be) in Hanoi. 4. I (read) the novel written by Jack London several times before. 5. What you (do) yesterday?...
Ngày tải lên: 24/12/2013, 10:18
Tài liệu BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) P3 pptx
... (sit) down and (rest). 7. Before she (watch) TV, she (do) her homework. BT TIẾNG ANH 10 - BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) P3 V. Supply the correct verb form: Simple past or ... (already, see) Dr. Rice. 3. When we came to the stadium, the match (already, begin). 4. They told me they (not, eat) such kind of food before. 5. He (ask) why we (come) so early. ... we (have) dinner. 3. Bill (have) breakfast when I (stop) at this house this morning. 4. As we (cross) the street, we (see) an accident. 5. Tom (see) a serious accident while he...
Ngày tải lên: 24/12/2013, 10:18
Tài liệu BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) P5 doc
... 4. My father (not watch) TV every night. 5. I (meet) Authur three weeks ago. 6. Yesterday the police (report) that they (capture) the thief. BT TIẾNG ANH 10 - BÀI TẬP TIẾNG ANH ... 41 . You (remember) my name or you (forget) it someday? 42 . Tom (study) chemistry for three years and then he gave it up. 43 . Miss Lee often (write) when she was on holiday. 44 . ... 46 . When the teacher came in, the pupils (play) game. 47 . Columbus (discover) America more than 40 0 years ago. 48 . By next month, I (finish) my first novel. 49 . By May...
Ngày tải lên: 24/12/2013, 10:18
Tài liệu BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES)- P6 ppt
... station at 5 p.m. 100. Up to now, the teacher (give) our class five tests BT TIẾNG ANH 10 - BÀI TẬP TIẾNG ANH LỚP 10 EXERCISES (TENSES) P6 XI. Supply the correct verb forms. (CONT) 51. ... 84. Mr. Jackson (paint) his house since last month. 85. She (ask) me to tell about him several times. 86. The audience (listen) to everything he said last night. 87. At 4 p.m ... I (work) in my office at that time. 88. A: I (play) football when I was 5 years old. 94. Please be quiet! I (work). 95. When I (be) a child, I (want) to be a doctor. 96. David...
Ngày tải lên: 24/12/2013, 10:18
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