Phân tích đa thức thành nhânn tử X^23+x^22+x^21+...+x^2+x+1 Tính giá trị của A=2^10-2^9-2^8-2^7-...-2^2-2-1

vẽ mầm NL : anh em dân chuyên anh nhường cho toi mấy slot môn anh ez đi toi nguu anh quá mà :(( ko bt lm câu khó hic

Tóm tắt: Cho: a ∩ c = A b ∩ c = B A4= B2=45 độ Tìm : a, A1 = ? ; B3 = ? so sánh b, A2 = ? so sánh A2 và B2 c, Viết tên 3 cặp góc đồng vị còn lại với số đo của chúng d, A1+ B2 ; A4 + B3

Giải thích cách làm giúp e vs ạ

Nhiệt phân hoàn toàn 30,8 gam hỗn hợp KClO3 và KMno4 thu được sau phản ứng với 14,9 gam KCl ( muối Kali Clorua ) a/ Viết PTTH xảy ra ? b/ Tính Phần Trăm theo khối lượng từng chất trong hỗn hợp ban đầu.

Em khum bíc làm mấy ank cỵ giúp em với:""")

Any article left by students in the office will be taken to the lost property office XÁC ĐỊNH CỤM DANH TỪ VÀ CHO BIẾT CHỨC NĂNG CỦA CỤM DANH TỪ ( BỔ NGỮ , TRẠNG NGỮ, CHỦ NGỮ HAY TÂN NGỮ ). AI GIÚP EM VỚI Ạ

giúp em giải đề này em đang cần gấp ạ

Giúp e với ạ Vote 5 sao E cảm mơn

Mark the letter (A, B, C, or D) on your answer sheet to indicate the sentence that is CLOSEST in meaning to each of the following questions. 21. “We are going to visit our grandparents tomorrow”, they said A. They said to me that they are going to visit their grandparents the following day. B. They said to me that they were going to visit their grandparents tomorrow. C. They said to me that they were going to visit their grandparents the day before. D. They said to me that they were going to visit their grandparents the following day. 22. We’ve never seen a prettier flower display than this. A. This is the prettiest flower display we’ve ever seen. B. This flower display isn’t as pretty as those we’ve seen. C. This flower display is prettier than some we’ve ever seen. D. This is one of the prettiest flower displays we’ve ever seen. 23. I don’t have a map, so I can’t show you the way. A. Unless you give me a map, I won’t show the way. B. I would have a map if I showed you the way. C. I would show you the way if I had a map. D. Unless you have a map, I can show you the way. 24. She started to teach French at the university ten years ago. A. The last time she taught French at the university was ten years ago. B. It’s ten years since she last taught French at the university. C. French has been taught at the university by her for ten years. D. She started taught French at the University for ten years. 25. “Why don’t you go to the library to study, Nam?” Mary said A. Mary asked Nam to study in the library. B. Mary asked why Nam doesn’t study in the library. C. Mary invited Nam to go to the library with him. D. Mary suggested that Nam should study in the library. Choose the word whose underlined part is pronounced differently from the others. 26. A. equal B. fashion C. champagne D. match 26. A. studied B. invited C. mentioned D. loved 28. A. horrible B. hopeful C. handkerchief D. honor