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Câu hỏi: Nếu $\int\limits_{1}^{4}{f\left( x \right)\text{dx}}=-4$ và $\int\limits_{1}^{4}{g\left( x \right)\text{dx}}=6$ thì $\int\limits_{1}^{4}{\left[ f\left( x \right)-g\left( x \right) \right]\text{dx}}$ bằng
A. $2$.
B. $-10$.
C. $-4$.
D. $6$.
A. $2$.
B. $-10$.
C. $-4$.
D. $6$.
Ta có $\int\limits_{1}^{4}{\left[ f\left( x \right)-g\left( x \right) \right]\text{dx}}=\int\limits_{1}^{4}{f\left( x \right)\text{dx}}-\int\limits_{1}^{4}{g\left( x \right)\text{dx}}=-4-6=-10$.
Đáp án B.