Cho hình phẳng (H) giới hạn bởi đồ thị của hai hàm...
Câu hỏi: Cho hình phẳng (H) giới hạn bởi đồ thị của hai hàm số \(y = {f_1}(x), y = {f_2}(x)\) và hai đường thẳng \(x = a, x = b\) (phần gạch chéo trên hình). Tìm công thức tính diện tích của hình (H).![](data:image/png;base64,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)
A. \(\int\limits_a^b {{\rm{[}}{f_1}(x) - {f_2}(x){\rm{]d}}x} \)
B. \(\int\limits_a^b {\left| {{f_1}(x) - {f_2}(x)} \right|{\rm{d}}x} \)
C. \(\int\limits_a^b {{f_2}(x){\rm{d}}x} - \int\limits_a^b {{f_1}(x){\rm{d}}x} \)
D. \(\int\limits_a^b {\left| {{f_1}(x) + {f_2}(x)} \right|{\rm{d}}x} \)
Câu hỏi trên thuộc đề trắc nghiệm
Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Tôn Đức Thắng