Gọi S là diện tích hình phẳng (H) giới hạn bởi các...
Câu hỏi: Gọi S là diện tích hình phẳng (H) giới hạn bởi các đường \(y = f\left( x \right)\), trục hoành và hai đường thẳng \(x=-1,x=2\) (như hình vẽ bên dưới). Đặt \(a = \int\limits_{ - 1}^0 {f\left( x \right){\rm{d}}x} ,b = \int\limits_0^2 {f\left( x \right){\rm{d}}x} \), mệnh đề nào sau đây đúng?![](data:image/png;base64,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)
A. \(S = b + a\)
B. \(S = b - a\)
C. \(S = -b + a\)
D. \(S = -b - a\)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT Quốc Gia năm 2019 môn Toán Trường THPT Cù Huy Cận lần 1