Người ta chế tạo một thiết bị hình trụ như hình vẽ...
Câu hỏi: Người ta chế tạo một thiết bị hình trụ như hình vẽ bên. Biết hình trụ nhỏ phía trong và hình trụ lớn phía ngoài có chiều cao bằng nhau và có bán kính lần lượt là \({r_1},{r_2}\) thỏa mãn \({r_2} = 3{r_1}.\) Tỉ số thể tích của phần nằm giữa hai hình trụ và hình trụ nhỏ là![](data:image/jpeg;base64,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)
A 4
B 6
C 9
D 8
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG môn Toán năm 2019 - Thầy Chí - Đề số 7