Cho đồ thị \(\left( C \right):y = f\left( x \right...
Câu hỏi: Cho đồ thị \(\left( C \right):y = f\left( x \right) = \sqrt x \). Gọi (H) là hình phẳng giới hạn bởi (C), đường thẳng x = 9, Ox. Cho M là điểm thuộc (C), A(9;0). Gọi \(V_1\) là thể tích khối tròn xoay khi cho (H) quay quanh Ox, \(V_2\) là thể tích khối tròn xoay khi cho tam giác AOM quay quanh Ox. Biết \(V_1=2V_2\). Tính diện tích S phần hình phẳng giới hạn bởi (C), OM. (hình vẽ không thể hiện chính xác điểm M).![](data:image/png;base64,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)
A. S = 3
B. \(S = \frac{{27\sqrt 3 }}{{16}}\)
C. \(S = \frac{{3\sqrt 3 }}{2}\)
D. \(S = \frac{4}{3}\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề tham khảo thi HK2 môn Toán lớp 12 năm học 2018 - 2019