integrate `1/(x^2+x+1)^2`

Integrate 1//(2x^(2)+x-1) .

integrate x^2+1/x^4+1

Evaluate the following integrals: int 1/((x^2-1)sqrt(x^2+1))dx , x>0

Integrate: 1/x^2-a^2 dx. Integrate: 1/a^2-x^2 dx . Integration of : 1/x^2-a^2 dx. Integration of : 1/a^2-x^2 dx . Integration most important questions.

Integrate (x^2 + 1) sqrt(x + 1)

Evalute the following integrals int (1)/((x+ 1)^(2)(x^(2) + 1)) dx

Evaluate the following integrals: int 1/(x(x^2+1))^2dx

Evaluate the following integrals: int ((x^2+1)e^x)/(x+1)^2 dx

Evalute the following integrals int (1)/(x^(2) sqrt(1 + x^(2))) dx