A. \(\int\limits_0^1 {f(x)\,dx \ge 0} \).
B. \(\int\limits_0^1 {g(x)\,dx \le 0} \).
C. \(\int\limits_0^1 {g(x)\,dx \ge \int\limits_0^1 {f(x)\,dx} } \).
D. \(\int\limits_0^1 {f(x)\,dx \le 0} \).
A
Ta có: \(\int\limits_0^1 {f\left( x \right)} \,dx = \int\limits_0^1 {{x^2}} dx = \left( {\dfrac{{{x^3}}}{3}} \right)\left| \begin{array}{l}^1\\_0\end{array} \right. = \dfrac{1}{3}\)
\(\int\limits_0^1 {g\left( x \right)} \,dx = \int\limits_0^1 {{x^3}} dx = \left( {\dfrac{{{x^4}}}{4}} \right)\left| \begin{array}{l}^1\\_0\end{array} \right. = \dfrac{1}{4}\)
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