Cách gộp nghiệm x = k2 $\pi$ VÀ x = k3 $\pi$

giải giúp mik bài 5 vs Phải thật hay nha

viết ptpt,pt ion rút gọn của các p/ư sau 1,BaCl2+AgNO3 6,NaHS+HCl 11,Al2(SO4)3+Ba(NO3)2 2,Fe2(SO4)3+AlCl3 7,CaCO3+H2SO4 12, BaCl2+KOH 3,Fe(NO3)3+Ba(OH)2 8,Pb(NO3)2+H2S 13,Ca3(PO4)2+H2SO4 4,KHCO3+HCl 9, KCl+AgNO3 14, K3PO4+AgNO3 5,CaCl2+Na3PO4 10, K2CO3+H2SO4 15, Fe2(SO4)3+KOH MONG MN GIÚP MÌNH VỚI MÌNH XIN CẢM ƠN MN NHÌU

Phân tích tính cách độc ác, thâm hiểm của bà cô qua đoạn trích văn bản "Trong lòng mẹ" của Nguyên Hồng bằng đoạn văn Tổng- phân-hợp

Do you think advertisements are a good or bad influence on children?

mn giúp mình làm các câu này với ạ!

how often do you use the computer do you used computer

1. Jane___________ a film last night. (watch) 2. He ____________ a box. (carry) 3. They __________ their father. (help) 4. John and Mary_________ homework yesterday. (do) 5. I____________ to Andrew. (talk) 6. Susan___________ with Peter. (dance) 7. The boys__________ (try) 8. We_____________ a trip. (plan) 9. She____________ her hair. (wash) 10. The car__________ at the traffic lights. (stop)

1 Is the weather like in Vietnam in summer Do they go swimming ? Never Oranges are there in the fridge? There are five Do you travel to work everyday? By bus , of course Does david always do in the morning ? Do you usually go on Sunday Is it? It's five thirsty Is her hair? It's yellow Does he feel? Tired and thirsty Fat is it from here to Hong link town She want to A singer We. Going to play hide and seek You. Go to the docket because you have a fever Don not climb the tree? You should not run The stair Is the book shop? It is opposite There are many book. My school bag There is a table. To the bed

các số : 898, 944, 938, 939 phát âm tiếng anh kiểu gì vậy