`int1/((cos^2(ln((1+x)/(1-x)))(1-x^2))`dx

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

int(ln(In((1+x)/(1-x))))/(1-x^(2))dx

int_(a=)^(oo)ln(x+(1)/(x))(dx)/(1+x^(2))dx=(pi)/(2)ln a then

int_((1)/(2))^(2)(ln x)/(1+x^(2))dx

The value of ({int_(-1//2)^(1//2) cos2x.log((1+x)/(1-x))dx})/({int_(0)^(1//2)cos2x.log((1+x)/(1-x))dx}) is

The value of ({int_(-1//2)^(1//2) cos2x.log((1+x)/(1-x))dx})/({int_(0)^(1//2)cos2x.log((1+x)/(1-x))dx}) is

int(1)/(x cos^(2)(1+log x))dx

int e^(ln(1+(1)/(x^(2))))*(x(x^(2)-1))/(x^(4)+1)dx=

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

int_(0)^(1)(log(1+x))/(1+x^(2))dx