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Câu hỏi: Cho hàm số $f\left( x \right)=4{{x}^{3}}-3$. Khẳng định nào dưới đây đúng?
A. $\int{f\left( x \right)\text{d}x={{x}^{4}}-3x+C}$.
B. $\int{f\left( x \right)\text{d}x={{x}^{4}}+C}$.
C. $\int{f\left( x \right)\text{d}x=4{{x}^{3}}-3x+C}$.
D. $\int{f\left( x \right)\text{d}x=12{{x}^{2}}+C}$.
A. $\int{f\left( x \right)\text{d}x={{x}^{4}}-3x+C}$.
B. $\int{f\left( x \right)\text{d}x={{x}^{4}}+C}$.
C. $\int{f\left( x \right)\text{d}x=4{{x}^{3}}-3x+C}$.
D. $\int{f\left( x \right)\text{d}x=12{{x}^{2}}+C}$.
Ta có $\int{f\left( x \right)\text{d}x=\int{\left( 4{{x}^{3}}-3 \right)\text{d}x={{x}^{4}}-3x+C}}$.
Đáp án A.