y(x)=integral (from 0 to arcsin(1/root(root(8))) ) arcsin ( (((cos(x)+root(root(9-16*sin^2(x)))*sin(x))/(1+tan(x)))*((cos(-x)+root(root(9-16*sin^2(-x)))*sin(-x))/(1+tan(-x))))^(1/2) ) dx