Cho $\displaystyle f\left( x \right)=3{{x}^{3}}-{{x}^{2}}-4x+1$ và$\displaystyle g\left( x \right)=2{{x}^{3}}+{{x}^{2}}-3x-1$ . Tích phân$\displaystyle \int\limits_{-1}^{2}{\left| f\left( x \right)-g\left( x \right) \right|}dx$ bằng với tích phân:
A. $\displaystyle \int\limits_{-1}^{2}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}$
B. $\displaystyle \int\limits_{-1}^{1}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}-$$\displaystyle \int\limits_{1}^{2}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}$
C. $\displaystyle \int\limits_{-1}^{1}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}+$$\displaystyle \int\limits_{1}^{2}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}$
D. Tích phân khác.
A. $\displaystyle \int\limits_{-1}^{2}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}$
B. $\displaystyle \int\limits_{-1}^{1}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}-$$\displaystyle \int\limits_{1}^{2}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}$
C. $\displaystyle \int\limits_{-1}^{1}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}+$$\displaystyle \int\limits_{1}^{2}{\left( {{x}^{3}}-2{{x}^{2}}-x+2 \right)dx}$
D. Tích phân khác.
Loga
Hóa Học lớp 12
