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Tích phân $\int\limits_{0}^{1}{\dfrac{{{x}^{2}}-2x+5}{x+2}dx}$ bằng

Câu hỏi: Tích phân $\int\limits_{0}^{1}{\dfrac{{{x}^{2}}-2x+5}{x+2}dx}$ bằng
A. $\dfrac{-7}{2}+13\ln \dfrac{2}{3}$.
B. $\dfrac{-7}{2}-13\ln \dfrac{3}{2}$.
C. $\dfrac{7}{2}+13\ln \dfrac{3}{2}$.
D. $\dfrac{-7}{2}+13\ln \dfrac{3}{2}$.
Ta có $\int\limits_{0}^{1}{\dfrac{{{x}^{2}}-2x+5}{x+2}dx}=\int\limits_{0}^{1}{\left( x-4+\dfrac{13}{x+2} \right)dx}=\left( \dfrac{{{x}^{2}}}{2}-4x+13\ln \left( x+2 \right) \right)_{0}^{1}=\dfrac{-7}{2}+13\ln \dfrac{3}{2}.$
Đáp án D.
 

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