Tính `(5+4`$\sqrt{2}$`)(3+2`$\sqrt{1+\sqrt{2}}$`)(3-2`$\sqrt{1+\sqrt{2}}$`)` giải chi tiết cho em nhaa :<<

M.n giúp mình với,mình cảm ơn trước ạ

Bệnh nào đưới đây thường khó phát hiện ở nữ giới hơn là nam giới và chỉ khi đến giai đoạn muộn mới biểu hiện thành triệu chứng ? A. Tất cả phương án còn lại B. HIV C. Lậu D. Giang mai

Cho (O;R) và điểm P nằm ngoài đường tròn. Một các tuyến qua P cắt (O) tại M, N (PMN không qua tâm O). Hai tiếp tuyến tại M,N của (O) cắt nhau tại A. Vẽ AE vuông góc OP tại E. a) Chứng minh: A, M, E, O, N cùng thuộc 1 đường tròn b) Tia AE cắt (O) tại I, K (I nằm giữa A và K). Chứng minh: $AM^{2}$ = AI.AK và $\frac{AI}{AK}$ = $\frac{MI^{2}}{MK^{2}}$ c) Chứng minh: PI là tiếp tuyến của (O)

10. If I ............. The bus, I will get a taxi instead.A.miss B. will mis C. would miss D. missed 11.They said they ................. very happyA.was B.are C. were D. will be12. If we ............ by coach, we wouldn’t have got car sick.A. hadn’t gone B. haven’t gone C. went D. 13.................. this tractor .................. last week?A.Did / buy B. Was / bought C. Has / bought D. Has / been bought 14................the report ......... yet?A.Was / written B. Has / written C. Did / write D. Has / been written 15.Since its beginning in 1930, the Soccer World Cup has grown to be one the most...........spectacularA.factor B.events C. regions D. athletes 16.In the 2030 the Football World Cup final tournament.......... in Africa for the first time ever.A.is hold B. is holding C. will hold D. will be held 17.The 2012 Olympic Games ............... held in London.A.beB.wasC.wereD.being 18.Who ............ the first man on the Moon ?A.wasB.wereC.beD.being 19. Did you climb Mount Fansipan when you .............. in Sapa ?A. visitB. visitingC.visitedD.visits 20.The people are ....................................................................A.friendlyB.pollutedC.niceD.friend21.The food is ............................................................................A.noisyB.deliciousC.goodD.bad 22.The buildings are .....................................................................A.tallB.beautifulC.fastD.long 23. Your father took this photo on holiday, ..................?A. didn't she B. doesn't he C. didn't he D. isn't he 24. Mr. David, _______ comes from England, has never been to Vietnam.A. whom B. who C. that D. whose 25. Mary and Peter will be going there again next years,...................... ?A.will they B. won't they C. will not they D.won't Mary and Peter 26The girl ............ the piano is Mary.A. is played B. play C. played D. playing 27.A .............. is a person who plays the guitar.A. guitarist B. collector C. singer D. drummer28. Let’s go to swim, ......................?.A will weB. shall weC. do youD. are you 29. It was Jone ..........was given a lot of nice presents on his birthday .A. whoB.whichC. heD. whose 30. What do you often do ............. your free time ?A. inB.

nhanh nhé cấc bạn nhanh & đúng đc 2 vote 5* và 2 cảm ơn + ctlhn

Trung bình của 6, 8 và 10 bằng trung bình của 7, 9 và A 11. B 7. C 9. D 8.

10. If I ............. The bus, I will get a taxi instead.A.miss B. will mis C. would miss D. missed 11.They said they ................. very happyA.was B.are C. were D. will be 12. If we ............ by coach, we wouldn’t have got car sick.A. hadn’t gone B. haven’t gone C. went D. go 10. If I ............. The bus, I will get a taxi instead.A.miss B. will mis C. would miss D. missed11.They said they ................. very happyA.was B.are C. were D. will be12. If we ............ by coach, we wouldn’t have got car sick.A. hadn’t gone B. haven’t gone C. went D. go 13.................. this tractor .................. last week?A.Did / buy B. Was / bought C. Has / bought D. Has / been bought 14................the report ......... yet?A.Was / written B. Has / written C. Did / write D. Has / been written15.Since its beginning in 1930, the Soccer World Cup has grown to be one the most...........spectacularA.factor B.events C. regions D. athletes16.In the 2030 the Football World Cup final tournament.......... in Africa for the first time ever.A.is hold B. is holding C. will hold D. will be held17.The 2012 Olympic Games ............... held in London.A.beB.wasC.wereD.being18.Who ............ the first man on the Moon ?A.wasB.wereC.beD.being19. Did you climb Mount Fansipan when you .............. in Sapa ?A. visitB. visitingC.visitedD.visits20.The people are ....................................................................A.friendlyB.pollutedC.niceD.friend21.The food is ............................................................................A.noisyB.deliciousC.goodD.bad22.The buildings are .....................................................................A.tallB.beautifulC.fastD.long 23. Your father took this photo on holiday, ..................?A. didn't she B. doesn't he C. didn't he D. isn't he 24. Mr. David, _______ comes from England, has never been to Vietnam.A. whom B. who C. that D. whose25. Mary and Peter will be going there again next years,...................... ?A.will they B. won't they C. will not they D.won't Mary and Peter 26The girl ............ the piano is Mary.A. is played B. play C. played D. playing

a) tìm một số biết số đó chia 4 dư 3, chia 9 dư 5. hỏi số đó chia 36 dư bao nhiêu? b) Tìm một số tự nhiên biết số đó chia 9 dư 5, chia 7 dư 4 và chia 5 dư 3.

Cho hình chóp S.ABCD có đáy là hình vuông cạnh a, H là trung điểm AB, SH ⊥(ABCD) , SH=a. Tính sin ∝ với ∝=((SAC),(SBC)) Giup mình với