mọi người ơi :sin4x=cos2x làm sao vậy ạ

Cho hình vuông ABCD cạnh 1cm. M là trung điểm BC. Trên cạnh CD lấy điểm N sao cho góc MAN = 45 độ. Tính độ dài DN.

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Cho đa thức M= ab. (a+ b+ c)- bc. (b+ c)+ ca. (c+ a) a) Tính M nếu (a+ b+ c)= 0 b) Phân tích đa thức M thành nhân tử.

giải chi tiết giúp!!!!!! chỉ cso TN th nên nhanh giùm hỉ! hứa vote đầy đủ

Calli: Sâu Róm NL: Bạn nào thấy Sâu vẽ xấu giơ tay :Đ, Sâu tự kêu mik vẽ xấu ;Đ

Có 2 bài th ạ !!!! giúp mình đc k an

nhanhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Exercise 1: Complete each sentence by using the correct phrasal verbs given in the box. Remember too put the verbs into the CORRECT TENSE form. look after live on look round get over turn off take after look for come across take off go off 1. Everyone panicked when the bomb . 2. He was very unhappy after his girlfriend left him, but I think he is starting to it now. 3. We’re going on holiday next month. We must find someone to the cat and plants. 4. I know you’ve seen the new part of the town, but you should the old part. It’s very interesting. 5. We were on our way to college when we some dancers. They were doing a beautiful dance in the street. 6. He’s very good at sport and his mother is, too. He her. 7. She loves acting, but she can’t the money she earns from it. She has to do other jobs. 8. I was very nervous as the plane . 9. Remember to all the lights before going out. 10. I’m thinking about a job at the moment.

................... Cần gấp, ngâm lượn nhea :<