Kết quả tìm kiếm

1.Cho đường tròn(O,R) cố định.Từ 1 điểm M nằm ngoài đường tròn kẻ 2 tiếp tuyến MA,MB với đường tròn(A,B là các tiếp điểm).Đường trung trực của đường kính BC cắt AC tại K a,Chứng minh rằng MK=R,5 điểm M,K,A,O,B cùng nằm trên 1 đường tròn b,Khi M di động nằm ngoài đường tròn sao cho tam giác AMB...

1.We don't ever know whether she is still weathy. For all we know.. 2. A government official leaked the story to the world press. WIND 3. Building societies will have to guard against their rivals. LAURELS 4. He is becoming quite famous as an interviewer. NAME 5. He makes sure that he isn't...

1. The house shouldn’t be left unlocked for any reason. ( ACCOUNT ) 2. A huge investment has been put into the field of solar-electricity.( INVEST ) 3. Alice was not a confident person, and that was why she was so shy. ( DUE ) 4. When I started work, I was so inexperienced that I couldn’t...

Cho a,b,c>0 và a+b+c\leq1.Chứng minh rằng\frac{1}{1+a}+\frac{1}{1+b}+\frac{1}{1+c}\geq 2 Giúp mình với

1.Tìm giá trị lớn nhất của M=\frac{y \sqrt{x-1}+x \sqrt{y-4}}{x y} 2.Cho a,b,c\geq0 thỏa mãn a+b+c+2\sqrt{a b c}=1 Tính giá trị của biểu thức: B=\sqrt{a (1-b) (1-c)}+\sqrt{b (1-c)(1-a)}+\sqrt{c(1-a)(1-b)}-\sqrt{a b c}+2013

1.I think this route looks dangerous but I can't think of a better option(alternative) ->However dangerous this route looks,..think of 2.Helen won't be happy till she gets a full refund(than) ->Nothing..Helen 3.How would you deal with such challenge?(presented) ->What..such challenge? 4.It is...

1. Alice was not a confident person, and that was why she was so shy. ( DUE ) 2. When I started work, I was so inexperienced that I couldn’t send a fax. (CLUE) 20. What you have been saying is quite irrelevant. (BEDISE ) 21. Please stop criticizing everybody! (DOWN ) 22. We don’t expect that...

1.I find Harold’s behavior quite incomprehensible. (loss) 2. The severity of the punishment bore no relation to the seriousness of the crime.(proportion) 3. I’m afraid our problems are just beginning( Iceberg) 4. In the area, Thailand is much better than all other countries in...

Cho đường tròn (0;r),đường kính AB.Dây CD song song với AB(C thuộc cung AD).Gọi M là điểm chính giữa của cung CD,vẽ các dây ME//AC,MF//BD,vẽ đường kính MN cắt CD,EF ở I và K Chứng minh: 1.ID=OK 2.S tứ giác ABCD=S tam giác MEF Mong mn làm xong nhanh bài này giùm mình với

1.Those official files cannot be seen by the public until the end of the decade(access) ->The..files until the end of the decade 2.You need to consider the fact that he hasn't spoken French for years(allowances) ->You need to..he hasn't spoken french for years. 3.I was surprised not to see Meg...

1.What he told me made me very curious to hear the rest of the story(appetite) ->What he told me..the story 2.I don't my staying in on a saturday night if I have good company(averse) ->I'm...night if I have good company 3.Miss Hayes will explain the day-to day running of the office to...

1.My boss says I can use his car whenever I want to,so long as I'm careful(disposal) ->My boss...so long as I'm careful 2.James realised that he could never be an architect.(cut) ->James realised.. an architect. 3. In 1967 programs began to be transmitted in colours(advert) ->1967.. 4.We have...

1.She was going to hand in her notice when the boss decided to promote her. ->She ... notice when the boss decided to promote her 2.I believe there will be an economic crisis soon. ->In...imminent 3.It was proposed that a new orphanage should be built ->They..to built a new orphanage.

1.No messages have come for me,have they?(There) 2.He drove so carelessly that he had an accident last month.(such) 3.They are letting John out of hospital next week.(released) 4.Why don't you get an optician to test your eyes?(tested) 5.I bought a magazine whose title is Sun Flowers(of)

1.His second attempt on the world record was successful He broke... 2.I write to him almost everyday. Hardly.. 3.The northwest of britain has more rain each year than the southeast The annual... 4.Scientists have tried very hard to find a cure for AIDS. Enormous.. 5.Someone has suggested...