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Câu hỏi: Cho $\int\limits_{0}^{6}{f\left( x \right)\text{d}x}=10$ và $\int\limits_{0}^{4}{f\left( x \right)\text{d}x}=7$ thì $\int\limits_{4}^{6}{f\left( x \right)\text{d}x}$ bằng:
A. $-17$.
B. $17$.
C. $3$.
D. $-3$.
$\int\limits_{4}^{6}{f\left( x \right)\text{d}x}=\int\limits_{0}^{6}{f\left( x \right)\text{d}x}-\int\limits_{0}^{4}{f\left( x \right)\text{d}x}=10-7=3$.
A. $-17$.
B. $17$.
C. $3$.
D. $-3$.
$\int\limits_{4}^{6}{f\left( x \right)\text{d}x}=\int\limits_{0}^{6}{f\left( x \right)\text{d}x}-\int\limits_{0}^{4}{f\left( x \right)\text{d}x}=10-7=3$.
Đáp án C.