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Câu hỏi: Cho các số thực a, b (với $a<b$ ). Nếu hàm số $y=f\left( x \right)$ có đạo hàm là hàm liên tục trên thì
A. $\int\limits_{a}^{b}{f\left( x \right)dx={f}'\left( a \right)-{f}'\left( b \right)}.$
B. $\int\limits_{a}^{b}{{f}'\left( x \right)dx=f\left( b \right)-f\left( a \right)}.$
C. $\int\limits_{a}^{b}{{f}'\left( x \right)dx=f\left( a \right)-f\left( b \right)}.$
D. $\int\limits_{a}^{b}{f\left( x \right)dx={f}'\left( b \right)-{f}'\left( a \right)}.$
A. $\int\limits_{a}^{b}{f\left( x \right)dx={f}'\left( a \right)-{f}'\left( b \right)}.$
B. $\int\limits_{a}^{b}{{f}'\left( x \right)dx=f\left( b \right)-f\left( a \right)}.$
C. $\int\limits_{a}^{b}{{f}'\left( x \right)dx=f\left( a \right)-f\left( b \right)}.$
D. $\int\limits_{a}^{b}{f\left( x \right)dx={f}'\left( b \right)-{f}'\left( a \right)}.$
Ta có: $\int\limits_{a}^{b}{{f}'\left( x \right)dx=f\left( b \right)-f\left( a \right)}.$
Đáp án B.