$\int \frac{1-x^7}{x\left(1+x^7\right)} d x=a \ln |x|+b \ln \left|x^7+1\right|+c \Rightarrow(a, b)=$
- $\left(1, \frac{2}{7}\right)$
- $\left(1, \frac{-7}{2}\right)$
- $\left(1, \frac{-2}{7}\right)$
- $\left(2, \frac{-2}{7}\right)$
Solution
Asked in: AP EAMCET 2017 (24 Apr Shift 1)