Gọi \(V\) là thể tích khối tròn xoay tạo thành khi...
Câu hỏi: Gọi \(V\) là thể tích khối tròn xoay tạo thành khi quay hình phẳng giới hạn bởi các đường \(y=\sqrt{x},\,\,y=0\) và \(x=4\) quanh trục \(Ox.\) Đường thẳng \(x=a\,\,\,\left( 0<a<4 \right)\) cắt đồ thị hàm số \(y=\sqrt{x}\) tại M (hình vẽ bên). Gọi \({{V}_{1}}\) là thể tích khối tròn xoay tạo thành khi quay tam giác OMH quanh trục Ox. Biết rằng \(V=2{{V}_{1}}.\) Khi đó:![](data:image/png;base64,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)
A \(a=\frac{5}{2}.\)
B \(a=3.\)
C \(a=2\sqrt{2}.\)
D \(a=2.\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi online - Ứng dụng tích phân tính thể tích khối tròn xoay Có lời giải chi tiết.