Ta có
$\sqrt{37 - 20\sqrt{3}} + \sqrt{37 + 20\sqrt{3}} = \sqrt{25 - 2.5.2\sqrt{3} + 12} + \sqrt{25 + 2.5.2\sqrt{3} + 12}$
$= \sqrt{(5 - 2\sqrt{3})^2} + \sqrt{(5 + 2\sqrt{3})^2}$
$= 5 - 2\sqrt{3} + 5 + 2\sqrt{3}$
$= 5 + 5 = 10$.
$=√25−2.5.2√3+12+√25+2.5.2√3+12$
$=$$√$$($$5$$−$$2$$√$$3$$)$$²$$+$$√$$($$5$$+$$2$$√$$3$$)$$²$
$=$$5$$−$$2$$√$$3$$+$$5$$+$$2$$√$$3$
$=$$5$$+$$5$$=$$10$
một người bán hàng lãi đc 650000 và bằng 25% tiền vốn . Hỏi : A) Người đó bán hàng đc bao nhiêu tiền ? B) Tiền lãi bằng bai nhiêu phần trâm tiền bán hàng ?
Giúp mình với Cấu tạo của hệ thần kinh có liên quan như thế nào đến việc thực hiện phản xạ ở động vật?
mọi người có thể giúp em với được k ạ ai biết thì chỉ em đừng lơ bài em ạ
Choose the best answer a, b, c or d to complete the sentence. (Questions 1-10) 1. Day of the Deal is celebrate…………..November 1 st in Mexico. a. On b. in c. at d. during 2. People throw tomatoes…………each other at La Tomatina in Bunol. a. On b. to c. at d. for 3. The festival starts with an opening…………where people walk through the streets. a. Party b. ritual c. feast d. parade 4. Summerfest is the world’s largest……….festival. It features more than 700 bands performing on 11 stages. a. Arts b. music c. religious d. seasonal 5. In the UK and US, people give colored chocolate eggs to each other at………. a. New Year b. Halloween c. Christmas d. Easter 6. ………..do people celebrate Diwali ? – They celebrate it with music, lights, fireworks and traditional sweets a. How b. What c. Why d. where 7. Bon Jovi will………at the 2019 Rock in Rio music festival in Brazil. a. Display b. perform c. gather d. attend 8. ……….., the hard rock Louder Than Life festival was cancelled. a. After raining heavily b. When it rains heavily c. Due to heavy rain d. Despite heavy rain 9. What is the highest prize awarded at the Cannes Film Festival? a. Palme d’Or b. Oscar c. Golden Globe d. Black Lady 10. “ In the Cooper’s Hill Cheese Rolling Festival, people attempt to chase a rolling cheese wheel down the hill”. “………….” a. That’s a great idea b. Oh, I totally agree c. It sounds crazy d. Ok, that’s interesting What festival are they? Write the name of the festival. (Questions 11-20) Christmas Tet La Tomatina Halloween Thanksgiving Lunar New Year Mid-Autumn Festival Ghost Festival Children’s Day Easter Rio Carnival Diwali 11. It is the Vietnamese New Year marking the arrival of spring based on the Lunar calendar._____________ 12. It is celebrated on October 31, and children dress up in costumes, visit people’s houses and ask for candy or treats.__________________ 13. It is a Brazilian festival held before Lent. The highlight of Carnival is the Samba Parade which is not to be missed!________________ 14. It is a religious holiday which celebrates the birth of Jesus Christ.________________ 15. It is a tomato fight festival which takes place in August in Bunol, Spain.___________________ 16. It is the Hindu festival of lights, which is celebrated in autumn every year.__________________ 17. It is celebrated in Canada and the United States as a day of giving thanks for the blessing of the harvest and the new year.________________ 18. It is traditional Buddhist festival in which ceremonies are held to welcome the ghosts and spirits.___________________ 19. It is held on the 15 th day of the 8 th lunar month with the fullest moon at night. Mooncakes and lanterns are the features of the festival.________________ 20. It is a holiday which celebrates the resurrection of Jesus from the dead.___________ NhANH HỘ MK VỚI MK CẦN GẤP TRONG 5 PHÚT
Viết số thích hợp vào chỗ chấm: 9m 6dm = m 2cm² 5mm²= cm² 5tấn 562kg = tấn 57cm 9mm = cm
Today Tom and I went to the museum to see somthing about space [1] ............ were a lot of things in the museum and we were very happy. we saw [2] ........... biggest rocket and took lost of photos . then we went to the cafe [3].......... lunch. the café is smaller [4].......... the others in the city but it very comfortable in the evening we went home by bus. the trip was great, so Tom said: i [5].......... come back next sunday. bn nào điền vào chỗ chấm giúp mik vs.
Giải giúp em với ạ :< Em cảm ơn :3
. Complete the sentences with the words in the box. (Hoàn thành câu với các từ đã cho trong khung) awards section relaxed amazing cinema boring films interested fantastic successful What type of _______________ do you like, Nick? Have you ever been to the _______________ lately? I am very _______________ in watching TV late on Sunday evenings. I feel very _______________ when I see romantic comedy. His film has won a lot of _______________. If you want to know which films are on the cinemas, you should look at the film _____________ of this magazine. Spiderman 2 has a lot of _______________ action scenes. Kristen Dunst’s most _______________ films are the Spiderman films. Avatar is a bit hit – the special effects are _______________. All the critics said the film was really _______________. However, I was so interested that I saw it from the beginning to the end.
Cho mk hỏi đáp án câu 8,9,10 với ạ
so với các thế kỉ x-xv thì nền văn hoá đại việt từ thế kỉ xvi-xviii có điểm gì khác Địa vị độc tôn của nho giáo được khẳng định ở thời đại nào ? Tại sao thế kỉ xvi-xviii nho giáo không còn giữ vị trí độc tôn như trước??? Xin các bạn giúp mình
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