Cho a,b,c ∈ N* và S = a+b/c + b+c/a + c+a/b a) Chứng minh rằng S ≥ 6 b) Tìm GTNN của S

Thì Tương lai hoàn thành đơn và Tương lai hoàn thành tiếp diễn Câu 1. Put the verbs into the correct form (future perfect simple). Write the verb phrases in the answer sheet only. 1. By 4 o’clock, we ____________ (finish) the assignment. 2. By the end of this month, you ____________ (find) a job. 3. My friend and I ____________ (come back) to Hanoi by Sunday. 4. The party _____________ (not/ break up) by midnight, so please join us after your class. 5. The sun _____________ (not/ rise) by 4 o’clock. 6. ______________ (they/ return) by the time the manager arrives? 7. How many Korean language lessons __________ (he/ have) by the time he flies to Busan? 8. By this time next month, she ___________ (be) to American twice. Câu 2. Put the verbs into the correct form (future perfect continuous). Write the verb phrases in the answer sheet only. 9. By the end of this year, we ____________ (live) together for one year and a half. 10. By the time you arrive, she _____________ (wait) for you for nearly three hours. 11. They ____________ (date) for four years by the end of this month. 12. She ____________ (cry) for nearly 30 minutes by the time you go home. 13. My sister ___________ (look for) her keys for two hours by 3 p.m. 14. By next Tuesday, Clara _____________ (read) this book for two months. 15. _____________ (they/ play volleyball) for two hours by 3 o’clock? 16. How long ____________ (it/ rain) by 2 o’clock? Mọi người giúp e vs ạ em cảm ơn

Giúp mk bài 1 vs ạ Mk đg cần gấp

Một cửa hàng vậy liệu xây dựng nhập về 40 tạ sắt . Giá một tạ sắt là 915 000 đồng. Cửa hàng đã bán được 10 tạ sắt. Tnhs giá tiền của số sắt còn lại

Giúp mik câu 2 với cảm mơn nhìu

So sánh A = 2010/2011 + 2011/2012 + 2012/2013 B = 2010 + 2011 + 2012/ 2011 + 2012 + 2013 Help me > . <

Minh sometimes (practice)(play)... the guitar in his room

Tính: 1/5x^2y( 15 x.y^2-5y+3xy)

dùng hình thức so sánh kép để hoàn thành They are big , they fall fast. --> The ................................................................... giúp vs ạ

So sánh hợp lý: $(-3)^{1000}$ và $(-81)^{250}$ $(-32)^{27}$ và $(18)^{39}$