Cho hình chóp có đáy là hình bình hành và có thể tích là V . Điểm P là trung điểm của , một mặt phẳng qua AP cắt hai cạnh SD và SB lần lượt tại M và N .Gọi là thể tích của khối chóp . Giá trị lớn nhất của thuộc khoảng nào sau đây ?

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• 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:

  It is rumored that the oil price is going to increase by 5%.

• 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:

  You will never eat there at the weekend unless you have made a reservation.           

• 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:

  You can stay in the flat for free as long as you pay the bills.     

• 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:

  We have run out of the items you want.         

• 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:

  Once the airline announced its ticket sale, the telephone in the main office would not stop ringing.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  In spite of all our efforts, we failed in the final match.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  We don’t allow anyone to use their cell phones during the examination.          

• Choose the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

  He had never experienced such discourtesy towards the president as it occurred at the annual meeting in May.         

• Choose the sentence that is closest in meaning to the given one:

  The noise next door did not stop until after midnight.         

• Mark the letter A,B,C or D on your answer sheet to indicate the correct answer to each of the following questions:

  The United State turns out 16.5 billion hot dog each year. “Turns out” means ________.