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Với giá trị nào của m thì phương trình 2sinx - m = 0 vô nghiệm

Giúp mình với ko chép mang nhanh ạ

Phương trình sin²x - 3cosx - 4 = 0 có nghiệm là

Phân tích nhân tử:3x.(x-1)^2-(1-x)^3

Exercise 3: Điền mạo từ thích hợp “a/an/the hoặc x (không cần mạo từ)”” vào chỗ trống. 14. Are John and Mary ________cousins? ~ No, they aren't ________cousins; they are ________brother and ________sister. 15. ________fog was so thick that we couldn't see ________ side of ________road. We followed ________car in front of us and hoped that we were going ________right way. 16. I can't remember ________exact date of ________storm, but I know it was on ________Sunday because everybody was at ________church. On ________Monday ________post didn't come because ________roads were blocked by ________fallen trees. 17. Peter thinks that this is quite ________ cheap restaurant. 18.       A: There's ________murder here. ~ B: Where's ________body?~ A: There isn't ________body. ~ B: Then how do you know there's been ________murder? 19. Number ________hundred and two, - ________house next door to us, is for sale. It's quite ________nice house with ________big rooms ________back windows look out on ________park. 20. I don't know what ________price ________owners are asking. But Dry and Rot are ________agents. You could give them ________ring and make them ________offer. 21. ________postman's little boy says that he'd rather be ________dentist than ________doctor, because ________dentists don't get called out at ________night. 22.  Just as ________air hostess (there was only one on the plane) was handing me ________cup of ________coffee ________plane gave ________lurch and ________ coffee went all over ________person on ________other side of ________gangway. 23. There was ________collision between ________car and ________cyclist at ________ crossroads near ________my house early in ________morning.   24. Professor Jones, ________man who discovered ________new drug that everyone is talking about, refused to give ________press conference. 25 Peter Piper, ________student in ________ professor's college, asked him why he refused to talk to ________press.

hai đơn vị kinh doanh chia lãi theo tỉ lệ 3:7 biết tổng tiền lãi là 3205000 đồng .Hỏi mỗi đơn vị được chia lãi bao nhiêu? (tỉ lệ thức )

`(2x^2 y)^3 . (x - 4xy^2 + 3x^2 y)`

3. Rewrite the following sentences in direct speech. 1. They wondered what to do to get good marks at the exam. ____________________________________________________________________2. Minh asked his teacher what to prepare for the camping. ____________________________________________________________________3. Nam and Lan couldn't decide what to buy for Linh on her birthday. ____________________________________________________________________4. She was not sure whether to tell her close friend that news. ____________________________________________________________________ 5. He had no idea who to ask for advice about his problem. ____________________________________________________________________ giúp em với ạ, em đang cần gấp :(

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