... rằng: 2 (b - c) (c - a) (a - b)2 b) Tính giá trị biểu thức: 2 1+ + 2 0102 - 2 010 + 2 010 2 010 2 010 A= + - 2 010 2 010 + 2 010 Câu 2: a) Cho a, b, c độ dài cạnh tam giác, chứng minh: 1 a+b+c ... a) Chứng minh tứ giác ADHE hình chữ nhật, từ tính DE biết R = 25 BH = 10 b) Chứng minh tứ giác BDEC nội tiếp đường tròn c) Xác định vị trí điểm A để diện tích tứ giác DEO1O2 đạt giá trị lớn Tính ... tốc ô tô thứ hai là: x – 10 (km/h) (Đk: x > 10) 120 120 Thời gian để ô tô thứ ô tô thứ hai chạy từ A đến B (h) (h) x x - 10 120 120 0, Theo ta có phương trình: x x - 10Giải ta x = 60 (thỏa...
... : x > 10 Vận tốc ôtô thứ hai x – 10 (km/h) Thời gian ôtô thứ hết quãng đường AB : Thời gian ôtô thứ hai hết quãng đường AB : Ta có 32 phút = 260 (h) x 0,25 260 (h) x 10 0,25 (h) 15 Theo đề ... trình : 260 260 x 10 x 4875 x 10 x 15 0,25 Giảiphươngtrình ta x1 = 75> 10 (thỏa mãn điều kiện) x2 = - 65 (không thỏa mãn điều kiện) Vận tốc ôtô thứ hai : 75 – 10 = 65 Trả lời : Vận ... pt(1) có nghiệm x1và x2 hay – m – m 3 Với m 0,25 3 pt(1) có nghiệm x1và x2 x1 x2 Theo Vi- ét ta có x1.x2 b 1 a c m 1 a thay vào biểu thức x1 + x2 + x1.x2 = ta được: + m +...
... điểm) Lúc 7h sáng xe tải từ A đến B cách 120km Sau nửa xe từ A đến B với vận tốc lớn vận tốc xe tải 10 km/h Xe đến B sớm xe tải phút Hỏi vận tốc xe tải bao nhiêu? Câu3) (2điểm) Cho phơng trình sau:...
... Hỏi làm riêng người phải để hoàn thành công việc DeCuongOnTap.Com - Cao V¨n ThÕ- THCS Qu¶ng TiÕn ĐỀCƯƠNGÔN TẬP THI TUYỂNSINHVÀOLỚP10 Buæi 10: CHUYÊN ĐỀ 9: CÁC BÀI TOÁN VỀ TƯƠNG QUAN GIỮA ... (x;y) = (2; -1) 3 x + my = mx − y =1 VD2: Cho hệ PT: DeCuongOnTap.Com - Cao V¨n ThÕ- THCS Qu¶ng TiÕn ĐỀCƯƠNGÔN TẬP THI TUYỂNSINHVÀOLỚP10 a, Giảihệ với m =2 b, Chứng minh hệ có nghiệm với ... 2x2 – = Dạng 2: Giải PT dạng a + b + c = a – b + c =0 DeCuongOnTap.Com - Cao V¨n ThÕ- THCS Qu¶ng TiÕn ĐỀCƯƠNGÔN TẬP THI TUYỂNSINHVÀOLỚP10 VD: Giải PT: a, x2 + 4x – = b, 2x2 – 7x – = Dạng...
... English? -> When… 10 “I’m sorry I can’t help you”, he said - >He said… 11 She went out, but she didn’t say anything ->She went out without … 12 He s fond of listening to pop music.- >He s interested ... because she isn’t a students -> If Jane…………… The boy is sorry he s not a doctor -> The boy wishes… This city had old buildings, but none can be found nowadays - > There used… Where you live? The interview ... walk d, walking 10 a, on b, of c, in d, at V/ Complete the second sentences It was breakfast time when Susan rang -> I… They will have to change the date of the meeting again The date……… Jane...
... Our neighbor will look for the garden when we go on holiday 15 The children laughed happy when they heard the funny story 16.They were swimming in the ocean when the storm happens 17 If you wants ... our health, is it? Many of my students enjoy to surf the web in their free time after finish their homework, they took a long bath and went to bed 10 If there will be too much exhaust fume in the ... usually hot there.( tropical, cold,warm,heat) 11 What’s the _ of Malaysia? Is it the ringgit?( currency, money, unit, money symbol) 12 Remember to ……off your shoes when you go into the temple(...
... than the latest one 40 Mrs Linh has spent 550,000VND on electricity in the last two months 41 Mrs Lan insisted that the electrical counter is wrong 42 Electricity numbers are recorded every month ... last month I don’t know why it’s higher this month Mrs Lan: Which counter is installed in your house? Mrs Linh: The usual mechanical counter was replaced with an electronic counter at the beginning ... beginning of this month It is said to run more exactly and be more convenient for the power officials to record monthly electricity numbers Mrs Lan: I don’t know what happens The usual mechanical...
... Our neighbor will look for the garden when we go on holiday 15 The children laughed happy when they heard the funny story 16.They were swimming in the ocean when the storm happens 17 If you wants ... our health, is it? Many of my students enjoy to surf the web in their free time after finish their homework, they took a long bath and went to bed 10 If there will be too much exhaust fume in the ... usually hot there.( tropical, cold,warm,heat) 11 What’s the _ of Malaysia? Is it the ringgit?( currency, money, unit, money symbol) 12 Remember to ……off your shoes when you go into the temple(...
... than the latest one 40 Mrs Linh has spent 550,000VND on electricity in the last two months 41 Mrs Lan insisted that the electrical counter is wrong 42 Electricity numbers are recorded every month ... last month I don’t know why it’s higher this month Mrs Lan: Which counter is installed in your house? Mrs Linh: The usual mechanical counter was replaced with an electronic counter at the beginning ... beginning of this month It is said to run more exactly and be more convenient for the power officials to record monthly electricity numbers Mrs Lan: I don’t know what happens The usual mechanical...
... >I…………………………………………………… 62 The last time he came to the cinemawas two months ago. >……………………………………… 63 I started the job years ago I…………………………………… 64 I haven’t been to the cinema for three months. >the last time ... English, he isn’t very good at Maths Nam is good at English,…………… 83 She doesn’t buy the dictionary because she doesn’t have enough money. > if she……………… 84 When did you last see Peter? > how long……………………………… ... meeting.(hold) 53 I don’t enjoy………… to the dentist.(go) 54 She wants ………… away for a few days (go) 55 The boys like ………… games but hate ………lessons (play – do) 56 He pretended …………sick.( be) 57 We don’t expect...
... Nam went on excursion to Oxford He got up early and took a bus, so he arrived there on time In the morning, he visited the National Gallery, Big Ben and the Hyde Park In the afternoon, he bought ... work?” He asked me …………………………………… They asked him, “shall we go to the stadium tomorrow?” They invited him……………………… Phong gets bad mark this semester → Phong wishes …………………………………… Hoa passed her ... she studied hard → Hoa studied hard, so 10 I said “I love my children” → I said 11 She asked me “Where you live?” → She asked me VI/Read the passage and answer the questions...
... teachers at their school (qualify) B/ Rewrite these sentences : (2pts) 1/ Unfortunately, she fails her final exam She wishes ……………………………………………………… 2/ “ Can you this exercise, Mai ?” He asked ... plumber checked the pipes for Mr Ha The pipes were _ Peter is the tallest boy in his class No one Let’s go abroad for our holiday this year Why They have ... holiday this year Why They have sold the old house at the end of the road The old house _ Who will take care of the children when you are away? Who will look ? ...
... the zoo with her friends last Sunday because her sickness A B C D The water and land around the chemical factory are serious polluted A B C D Our neighbor will look for the garden when we go on ... Read the passage and answer the questions below ( đ) Christmas is the biggest festival of the year in most of Britain Celebrations start on 24 December, Christmas Eve It is a family celebration ... centre on children When they go to bed on Christmas Eve, children hang up a pillow case( tuí) or a sack( bao tải ) for their presents When the children are asleep, Santa Claus climbs down the chimney...
... 8 The guide book was full _ (with/of) useful information V/ Read the following passage,then answer the questions Every day on radio, on TV, and in the newspapers, we hear, see, or ... is dumped anywhere, even in the city where many people are living.The second pollution problem is sea pollution Many people earn their living from fishing in the sea, and the fish they catch feed ... each of the following sentences,four words or phrases have been underlined Choose the one word or phrase (A,B,C or D) that would not be appropriate Mark your choice on the answer sheet: I don’t have...
... D He is the person whose called last night A B C D Hurricane Isabel when swept through Virginia last year, destroyed a lot of houses A B C D If the students are on a trip to the moon now, they ... a conditonal sentence from this fact) _ When I came, they _ (still / work) in the garden (Supply the correct tense of the verb in brackets) She is ... the small town She was born there (Combine into one sentence using relative adverb) _ There was a cow on the street.All the cars stopped (Combine into one...
... at the North Pole The factory will produce 10. 000 cars next year Has your house been decorated recently? 10 Did the noise of the children playing disturb you? VIII Rewrite the sentences He would ... this pollution comes from the land, which means it comes from (2) ……………… First, there is raw sewerage, which is pumped directly into the sea Many (3) …………… … both developed and developing, are ... this Secondly, ships drop about million tons of (4) …………………… into the sea each year Thirdly, there are oil spills from ships A ship has an accident and oil leaks from the vessel This not only pollutes...
... is the book He bought it yesterday.(which) IV Read the passage then answer the questions Christmas is the biggest festival of the year in most of Britain Celebrations start properly on ... that the children have left out A.True or false? Father Christmas comes when the children are sleeping Celebrations begin properly on 24 November, Christmas Eve B.Questions Is the Christmas the ... on 24 December, Christmas Eve It is a family celebration and many of the customs centre on children When they go to bed on Christmas Eve, children hang up a pillow case or a sack for their presents...
... (c - a)2 + (a - b) = 39 b) Tính giá trị biểu thức: 2 4 A = 2 010 - 2 010 + + 2 010 ÷ - 2 010 2 010 ÷ 1+ + 2 010 2 010 + 2 010 Câu 2: a) Cho a, b, c độ dài cạnh tam giác, chứng minh: 1 a+b+c ... THCS kỳ thi tuyểnsinhvàolớp10 THPT, THPT chuyên năm học 20152016 năm Chúc thầy, cô giáo em học sinh thu kết cao kỳ thi tới! A - PHẦN ĐỀ BÀI I - ĐỀÔN THI TUYỂNSINHLỚP10 THPT ĐỀ SỐ Câu ... a) Chứng minh tứ giác ADHE hình chữ nhật, từ tính DE biết R = 25 BH = 10 b) Chứng minh tứ giác BDEC nội tiếp đường tròn c) Xác định vị trí điểm A để diện tích tứ giác DEO 1O2 đạt giá trị lớn...