... 7/10 = 35/50 , 23 /25 = 46/50 Mà 35/50 < 40/50 < 46/50 ⇔ 7/10 p/q a/b > p/q Dựa vào tính chất này, so sánh: a) 6/7 11/10 b) -5/17 2/ 7 c) 419/- 723 -697/-313 ... 11/10 b) -5/17 2/ 7 c) 419/- 723 -697/-313 Đáp án hướng dẫn giải 41: Bài tiếp theo: Giải 42, 43,44, 45,46 trang 26 , 27 SGK Toán tập 2: Phép cộng phân số ...
... đen so với tổng số ô lớn Hướng dẫn giải Lập phân số quy đồng mẫu phân số vừa tìm Cũng sosánhsố phân số đơn giản với chọn phân số lớn chúng để sosánh với phân số lại ĐS a) b) Lưới E sẫm Bài ... phân số lại ĐS a) b) Lưới E sẫm Bài 41 - Trang 24 - Phần Số Học - SGK Toán Tập Đối với phân số ta có tính chất: Nếu Dựa vào tính chất này, so sánh: a) b) c) Hướng dẫn giải a) b) c) ... 6B yêu thích nhất? Hướng dẫn giải Quy đồng mẫu phân số cho ĐS Môn bóng đá Bài 40 - Trang 24 - Phần Số Học - SGK Toán Tập Lưới sẫm nhất? a) Đối với lưới ô vuông hình 7, lập phân số có tử số ô...
... school 91 Nobody is ready to go, …? A are they B isn’ t he C.is he D aren’ t they 92 Somsak is 28 years old, but Somsri, his sister, is only 14 A He is older than his sister two times B He is twice ... badly B worse C worst D worser 88 “She is an exellent professor.” “Yes, she is better than… teacher we have.” A some other B any other C some D.any 89 “They are important men.” “Which one’ s … ?” ... less B.lesser C the less D the lesser 85 I’ll come back… A as soon as I’ m possible B as soon as it can C as qickly as possible D as soon as possible 86 This apartment … in the building A is biggest...
... now (tall) 12 His homework 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……………………………………...
... feel 12. People say that Rolls Royce cars are the " (good) in the world (good) 1) This is a nice cat It's much than my friend's cat 2) Here is Emily She's six years old Her brother is nine, so he ... 2) The test in Geography was easy, but the test in Biology was 3) Florida is sunny Do you know the place in the USA? 4) Stan is a successful sportsman, but his sister is 5) My mother has a soft ... the world is a mountain in Hawaii (much) In the "Cheap Round the World Race" the winner is the person who spends the [?] money getting round the world (little OR few) I don't know much, but she...
... good 20 His house is _ mine A twice as big as B as twice big as C as two times big as D as big as twice 21 Today English is international of languages A more B most C the most D the more 22 ... of 23 The teacher speaks English we A fluently B more fluently C most fluently D more fluently than 24 John is much I thought A strong B more strong C stronger than D more strong than 25 ... received A the nicer B a nice C nicest D the nicest 26 The little boy spoke English his brother A more fast B fast than C the fastest D faster than 27 Sorry we’re late Your house is much than we...
... travel far -> The farther …………………………………………………………… ĐÁP ÁN Bài 2: C D C C C D A A D 10 D 11 C 12 C 13 D 14 A 15 A 16 C 17 B 18 A 19 C 20 B Bài 3: the cleverest longer the best cleaner more expensive ... better he works 20 The more money he has, the more he wants to spend 21 The more books you read, the more knowledge you will have 22 .The more he speaks, the more bored people feel 23 .The more the ... ……………………………………………….………… 20 As he has much money, he wants to spend much -> The more ……………………………………………….………… 21 If you read many books, you will have much knowledge -> The more …………………………………………………………… 22 He speaks...
... in small towns In the government of a country, the President is (important) _ person 10 People say that Chinese is (difficult) to learn than English II Fill in the correct ... ………………………………than last summer 10 He was the (clever) ………………………………….thief of all IV Fill in the comparison with as as John is (tall) Glen Janet is (beautiful) ……………………Jeniffer You are (crazy) ………………… ... complete these sentences by the words given Her daughter is …………….her (beautiful) Summer is……………… season of the year (hot) That dog isn’t ……………… it looks (dangerous) In the past, people were ………………...
... are than chimpanzees (intelligent) 20 Trains are than cars (fast) 21 Cristiano Ronaldo plays football than Figo (good III- Cho dạng sosánh tính từ ngoặc ( sosanh nhat) Bears are the animals ... 19- easy 10- good 20 - tall VI - Dùng sosánh để viết câu sau: Ex: Hue / small / Hanoi -> Hue is smaller than Hanoi 1- My school / big / your school -> 2- Lan / young / Hoa.-> ... the (thin) in her class 18- The winter is the (cold) season in a year V- Cho từ trái nghĩa từ sau : 1- black 11- noisy 2- heavy 12- young 3- strong 13- near 4- expensive ...
... mountain (high) 10 I prefer this chair to the other one It’s ………………(comfortable) Hoàn thành câu sosánh sau Sosánh ngang a Mary/tall/her brother _ b A lemon/not sweet/ an orange ... my new boss isn’t as rude (2) (as/ so/ than/ that) my old boss, Mrs Crossley, was I hated her She was the (3) (least/ less/ less and less/ so) friendly person I’ve ever met Everyone ... is…………………………………………………………………………… 20 The black car is cheaper than the red car The red car……………………………………………………………………………… 21 This film is more interesting than that one That film is……………………………………………………………………………… 22 My kitchen...
... A 12 H = 11 A 21 A 22 A (h + h ) + A h 12 211 11 122 1 12 A 11 M + A 12 M A 11g + A 12 g = A M + A M A 21 (h 122 + h 1 12 ) + A 22 h 21 1 12 A 21 g + A 22 g 21 22 ... 122 + h 1 12 H g M h 21 1 H H = 22 H 12 T H 21 H 22 H 12 1 = H H H H H 11 H11 H 22 H 12 H 21 H 21 H 11 11 22 12 21 B H = B C cos B C cos 2 A + B + 2C ... ) + ( + ).l1.l2.cos ; 2 m l j2= 2 ; 222 m3 v3 k3= thay l2 v2 2l2(chiều dàI gấp đôi) v =l 12 +l 12 ( + ) +2. l1.l2 ( + )cos ; p1= m1 g.l1 sin ; l sin + p2=m2g(l1sin + );...
... 21 12 11 H g2 M2 h1 12 T H H H H 12 H= H 12 H1 H1 H2 H 12. H21 H21 H1 H1 H2 H 12. H21 21 = Sinh viên thực Nguyễn mạnh Hà B B Ccos 1 H = 22 B Ccos A + B + 2Ccos ... v2 =x 222 + y =l 12 + l ( + ) +1 ( + ).l1.l2.cos ; 2 m l ; m v k3= 3 thay l2 v2 2l2(chiều dàI gấp đôi) j2= 2 v =l +l ( + ) +2. l1.l2 ( + )cos ; p1= m1 g.l1 sin ; p2=m2g(l1sin1 ... + B + 2C cos2 )1 + ( B + C cos2 )2 2C sin C sin + D cos1 + E cos(1 +2 ) M1 = H 11 + H 12 + h 122 + h 1 12 + g ; với H 11 = ( A + B + 2C cos ) H 12 = ( B + C cos ) h1 12 = 2C sin h 122 = C...
... Cn +2 + + Cn −k Cn = (2n)! (n − k )!(n + k )! Bài 6: Tính giá trò biểu thức: 2n A = 22 n C2 n + 22 n 2 C2 n + + C2 n 2n B = 22 n −1C2 n + 22 n −3 C2 n + + 21 C2 n −1 2n 2n ĐS : Ta có : (2x+1) ... số lẻ có không? b/ 2n − 10.C2 n + 1 02. C2 n − 103.C2 n + − 1 02 n−1C2 n −1 + 1 02 n = 81n c/ 2n C2 n + C2 n 32 + C2n 34 + + C2 n 32n = 22 n −1. (22 n + 1) (ĐH Hàng Hải, 20 01) Bài 5: Dùng đẳng thức ... C2 n < Bài 1: Chứng minh rằng: ( n ∈ N, n ≥ 1) 2n + 22 n (2n)! 1.3.5 (2n − 1) n C2 n = = HD: Biến đổi vế trái: 2. 4.6 (2n) 22 n 22 n.n! n! 1.3.5 (2n − 1) < Vậy ta phải chứng minh: 2. 4.6 (2n) 2n...