cho cấp số nhân (un) với un = 2 và công bội q=3. tổng của năm số hạng đầu bằng a. 40. b. 242. c. 80. d. 324.

Rút gọn biểu thức : A = $\frac{2³}{3x5}$ + $\frac{2³}{5x7}$ + $\frac{2³}{7x9}$ + ..... + $\frac{2³}{101x103}$

Mọi người trả lời giúp em với ạ

Tam giác ABC cân tại A. Cạnh AB = 32cm: BC = 24 cm. Vẽ đường cao BK. Tính CK

cho dãy số (un), biết un= 2n-1. số hạng un+1 bằng a. 2n. b. 2(n+1). c. 2n +1. d. 2n -3.

Ai giúp mình với ạ ! Mình cảm ơn rất nhiều luôn !mai thi rồi

You may only be one person to the world but you may be the world to one person.😢 Draw chibi or anime

Cho dãy số (un), biết un, = 2n+3/n+1. mệnh đề nào dưới đây đúng? a. dãy số (un), là dãy số giảm. b. dãy số (un), là dãy số tăng. c. dãy số (un), là dãy số không đổi. d. dãy số (un), là dãy số không tăng và cũng không giảm.

Mọi người vẽ giúp mình tranh dưới bằng màu nước nhé. Yêu cầu có tâm, đúng với số điểm đề ra. 1 pic ký, 1 pic không ký. Cảm ơn rất nhiều ạ.

VI. Read the passage and choose the correct answer to each question: Making a film takes a long time and is very hard work. Writing the story for the film may take many weeks. Filming the story being acted - or shooting the film, as it is called - often takes at least six months. Actors and cameramen work from very early in the morning until late at night. Each scene has to be acted and reacted, filmed and refilmed, until it is just right. Sometimes the same scene may have to be acted twenty or thirty times. The film studio is like a large factory, and the indoor stages are very big indeed. Scenery of all kinds is made in the studio. Churches, houses, castles and forests are all built of wood and cardboard. Several hundred people work together to make one film. Some of these people are the actors and actresses. The director of the film, however, is the most important person in a film studio. He decided how the scenes should be filmed and how the actors should act. Most people go to see a film because they know the film stars in it. Sometimes the film may be very poor. It is best to choose a film made by a good director. Some famous directors make their films very real. People feel that they themselves are among the people in the film. 24. Shooting a film often takes __________ A. Less than six months B. At least six months C. Many weeks D. Form early in the morning until late at night 25. Some scenes have to be filmed many times because ___________ A. It takes a long time to make a film B. It is often difficult to make a film C. Many people work together D. The film is poor 26. Which of the following is compared to a factory? A. The film studio B. The indoor stage C. The scenery D. A poor film 27. We should choose a film which ___________ A. has actors we know B. seems very real C. takes a long time to make D. is made by a good director 28. We should choose a film which ___________ A. has actors we know B. seems very real C. takes a long time to make D. is made by a good director