Question

( =int frac{1}{x^{2}}-int frac{2}{x^{3}}+int frac{3}{x^{4}} )
( =frac{x^{-2+1}-2 x^{frac{x^{-3+1}}{(-3+1)}+3 x^{2}-4+1}+c}{2+1}-frac{1}{x^{2}-frac{1}{x^{3}}+c} )
( =frac{-frac{1}{x}+2 frac{x^{-4+1}}{x^{2}+x-1}}{x^{3}+c} )
( =frac{-x^{2}+x-1}{x^{3}+c} )

# 26 2016 dr_28+3 7-309. Wk09

Solution