.int dfrac ({(x+1))^2}({({x)^2+1)}^2}dx.
int dfrac ({x)^2+1}({(x+1))^2(x-1)}dx;;
4.求不定积分int(x+1)/((x-1)(x^2)+1)^(2)dx.4.求不定积分$\int\frac{x+1}{(x-1)(x^{2}+1)^{2}}d
int dfrac (x+1)({x)^2+x+1}dx.
(44) int dfrac ({x)^3+1}({({x)^2+1)}^2}dx.
(44) int dfrac ({x)^3+1}({({x)^2+1)}^2}dx.
int dfrac (dx)(sqrt [3]{{(x+1))^2((x-1))^4}}
int dfrac (dx)(sqrt [3]{{(x+1))^2((x-1))^4}}
int dfrac (dx)(sqrt [3]{{(x+1))^2((x-1))^4}}
∫(x+1)/((x)^2-2x+5)dx.$∫\frac{x+1}{{x}^{2}-2x+5}dx$.