`intdx/(x^3-1)`

intdx/(e^x-1)

intdx/(x^2-9)

intdx/((x^2-1)sqrt(x^2+1))

intdx/(x^(1/2)+x^(1/3))

intdx/(x^(1/2)+x^(1/3)+x^(2/3))

intdx/(x(x^5+1))

intdx/(x(x^6+1))

intdx/((x-1)^(3/4)(x+2)^(5/4))= (A) 4/3((x-1)/(x+2))^(1/4)+c (B) 4/3sqrt((x-1)/(x+2))+c (C) 4/3((x+2)/(x-1))^(1/4)+c (D) none of these

intdx/(e^x-1)^2

intdx/(x^2+1)^2