Integrate cos inverse of (1-x^2)/(1+x^2) 1 answer below » Posted on November 8, 2016 Integrate cos inverse of (1-x^2)/(1+x^2) 1 answer below » Integrate cos inverse of (1-x^2)/(1+x^2) Integrate cos inverse of (1-x^2)/(1+x^2) 1 answer below »