Cho các góc A, B nhọn ; góc A<góc B. CMR: cos(B-A)=cosB.cosA+sinB.sinA

Thinking of volunteering? According to the recent survey, 40% of young people aged 16 to 25, who live in Britain, have done voluntary work. Young people often volunteer in places where they work with younger children such as on holiday camps. Wanting to meet other people and experience new things are the main reasons that they give for volunteering. However, they also say they want to help whose lives are more difficult than their own, More and more young people are volunteering abroad too. They often go to the countries where there have been disasters. Voluntary Service Overseas (VSO) which is an international development charity, always needs volunteers. The organization allows people, who are aged between 17 to 70, to share their skills and experiences. * Answer the questions 1. Have British teenagers done voluntary work ? ....................................... 2. Where young people often volunteer ?....................................... 3. what is Voluntary service overseas (VSO) ?....................................... * Complete the sentences with a word or a short phrases 1............... per cent of young people aged 16 to 25, who live in Britain, have done voluntary work. 2. Young people volunteer because they ……………to meet other people and experience new things. 3. They also often go to the countries where there have been …………….. 4. Voluntary service overseas allows people, who are aged between 17 to 70, to share their ………………

VOCABULARY AND GRAMMAR 1. Match the correct places and names with pictures. 1. One pillar pagoda Bai Dinh Temple 3. Ha Long Bay 4. Hung Kinh Temple D 5. First Doctor's stone tablets E 6. Temple of literature F Tại sao ko thấy giải

Tìm x, biết : x : 5 = 3104 x : 6 = 4560

Vì sao phân vi sinn vật sử dụng trong thời gian ngắn Giúp mình với Mai thi r 😢

Mầm mọc kinh tế biểu hiện như thế nào ở Trung Quốc ?

1) Ý nghĩa cột sống hình chữ S ? 2) Định nghĩa huyết áp ? 3) Yếu tố không phải là thành phần của huyết tương ?

Part 1: Rearrange the words to form the meaningful sentences 1. from / my sister’s / is / mine / dress / different / ______________________________________________________ 2. was /she/ because/ late/ of/ heavy/ the/ rain ______________________________________________________ 3. There / some / are / of / bottles / water / mineral / in / fridge / the/ ______________________________________________________ 4. by / the house / surrounded / is /police /the/ ______________________________________________________ Part 2: Rewrite the sentences so that their meaning stays the same 1. Summer is hotter than winter -> Winter is______________________________________________________ 2. Many foreign tourists visit the Temple of Literature. -> The Temple of Literature______________________________________________________

cho tam giác ABC có các góc đều nhọn , và AB <AC . Tia phân giác góc A cắt cạnh BC tại D . vẽ BE vuông góc vs AD tại E .Tia BE cắt cạnh AC tại F a) chứng minh AB= AF b) qua F vẽ đường thẳng song song vs BC cắt AE tại H lấy điểm K nằm giữa D và C sao cho FH=DK chứng minh DH//KF c) chứng minh góc ABC> góc ACB

Cho góc nhọn xOy. Trên tia Ox lấy điểm A, trên tia Oy lấy điểm B sao cho OA = OB. Trên tia Ox lấy điểm C, trên tia Oy lấy điểm D sao cho OC = OD. Chứng mih AC//BD