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Câu hỏi: Cho $\int\limits_{0}^{5}{f\left( x \right)\text{d}x=-2}$. Tích phân $\int\limits_{0}^{5}{\left[ 4f\left( x \right)-3{{x}^{2}} \right]\text{d}x}$ bằng
A. $-133$.
B. $-120$.
C. $-130$.
D. $-140$.
A. $-133$.
B. $-120$.
C. $-130$.
D. $-140$.
$\int\limits_{0}^{5}{\left[ 4f\left( x \right)-3{{x}^{2}} \right]\text{d}x}=4\int\limits_{0}^{5}{f\left( x \right)\text{d}x}-3\int\limits_{0}^{5}{{{x}^{2}}\text{d}x}=4.\left( -2 \right)-\left. \left( {{x}^{3}} \right) \right|_{0}^{5}=-8-125=-133$.
Đáp án A.