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$\int \frac{x^3+3x^2+3x-1}{x^2+2x+1}$

Tìm nguyên hàm $\int \frac{tanx}{cos^2x} \, dx$

Tìm nguyên hàm $\int {cos^3x} \, dx$

I. Choose the word which is pronounced differently from the others: (1mark): 1. a. took b. school c. food d. choose 2. a. please b. pleasure c. easy d. teacher 3. a. what b. who c. where d. when 4. a. hat b. house c. hour d. hang II. Choose the best answer: (3 marks) 1. ....................... does Lan have science class? a. When b. What time c. How long 2. History is ............. interesting and important subject a. a b. an c. the 3. Children should ........ to bed early. a. to go b. go c. going 4. Lan ............... reading books a. are b. is c. am 5. ................ don't you come to my house? OK. Let's go a. What b. How about c. Why 6. Blind man's bluff is a .......................... a. exercise b. game c. example 7. .............. are you doing? a. What b. Who c. When 8. Would you like ..................... badminton? a. play b. playing c. to play 9. Does Nam play marbles .................... recess? a. on b. at c. in 10. Mai learns ............. to use computer a. how b. when c. what 11. I am .............. my Math homework a. do b. doing c. to do 12. Jane is ..... beautiful than Hoa a. more b. the most c. fewer III. Put the verb in correct tense: (2 marks) 1. He (travel) to work by car. ............................................................................................................. 2. The children (play ) soccer at the moment. ............................................................................................................... 3. She (not do ) her housework every afternoon. ............................................................................................................... 4. He (buy ) a new hat tomorrow? ................................................................................................................

Làm nhanh hộ Đúng + vote 5sao +ctlhn

Cho mình hỏi Trong dạng câu "Neither S1 nor S2...." thì V chia theo S2 nhưng trong tag question thì lại chia theo số nhiều???? Cảm ơn ạ

Giúp mk câu 1,2 bài trọng âm với câu 41,42,43 với ạ

I. Choose the word which is pronounced differently from the others: (1mark): 1. a. took b. school c. food d. choose 2. a. please b. pleasure c. easy d. teacher 3. a. what b. who c. where d. when 4. a. hat b. house c. hour d. hang II. Choose the best answer: (3 marks) 1. ....................... does Lan have science class? a. When b. What time c. How long 2. History is ............. interesting and important subject a. a b. an c. the 3. Children should ........ to bed early. a. to go b. go c. going 4. Lan ............... reading books a. are b. is c. am 5. ................ don't you come to my house? OK. Let's go a. What b. How about c. Why 6. Blind man's bluff is a .......................... a. exercise b. game c. example 7. .............. are you doing? a. What b. Who c. When 8. Would you like ..................... badminton? a. play b. playing c. to play 9. Does Nam play marbles .................... recess? a. on b. at c. in 10. Mai learns ............. to use computer a. how b. when c. what 11. I am .............. my Math homework a. do b. doing c. to do 12. Jane is ..... beautiful than Hoa a. more b. the most c. fewer III. Put the verb in correct tense: (2 marks) 1. He (travel) to work by car. ............................................................................................................. 2. The children (play ) soccer at the moment. ............................................................................................................... 3. She (not do ) her housework every afternoon. ............................................................................................................... 4. He (buy ) a new hat tomorrow? ................................................................................................................

Tìm phương trình nghiệm nguyên: (x+1)(x+y)=2y(x-y)