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Câu hỏi: Nếu $\int_{-2}^{5}{f\left( x \right)\text{d}x=-1}$ và $\int_{-2}^{5}{g\left( x \right)\text{d}x=6}$ thì $\int_{-2}^{5}{\left[ f\left( x \right)+g\left( x \right) \right]\text{d}x}$
A. $5$.
B. $6$.
C. $1$.
D. $-1$.
A. $5$.
B. $6$.
C. $1$.
D. $-1$.
$\int_{-2}^{5}{\left[ f\left( x \right)+g\left( x \right) \right]dx}=\int_{-2}^{5}{f\left( x \right)dx+\int_{-2}^{5}{g\left( x \right)dx}=-1}+6=5$.
Đáp án A.