`int(x^3dx)/(x^(2)-2x+1)`

int(x-1)/(x^(2)-2x-3)dx

int(x^4-3)/(x^2+2x+1)dx

"int(x+2)/(3x^(2)-2x-1)dx

" () "int(3x+2)/((x^(2)+2x+1))dx

int(3x+1)/(2x^(2)+x-1)dx

int(3x+2)/(2x^(2)+x+1)dx

int_(1)^(3)(dx)/(x^(2)+[x]^(2)+1-2x[x]) ( where [x] is the largest integer not exceeding x )

int(x^(2)+1)/(x^(2)+2x-3)dx

Evaluate : (i) int(3x^(2))/((1+x^(6)))dx (ii) int(x^(3))/((x^(2)+1)^(3))dx (iii) (x^(8))/((1-x^(3))^(1//3))dx

int((x-1))/(x^(2)-2x+3)dx