Tìm \(\int{\frac{1}{{{x}^{2}}}}dx\).

Câu hỏi: Tìm \(\int{\frac{1}{{{x}^{2}}}}dx\).

A

 \(\int{\frac{1}{{{x}^{2}}}}dx=\frac{1}{x}+C\).                   

B

 \(\int{\frac{1}{{{x}^{2}}}}dx=-\frac{1}{x}+C\).                  

C

\(\int{\frac{1}{{{x}^{2}}}}dx=\frac{1}{2x}+C\).                  

D  \(\int{\frac{1}{{{x}^{2}}}}dx=\ln {{x}^{2}}+C\).