BF
Better Fellow
Ответ. INT( ((Cos(2*x))^2)/(sin x+cos x)*dx=INT(((cos(x)^2-(sin(x))^2)^2)/(sin x+cos x))*dx=INT((cos(x))^3+(sin(x))^3-(sin(x))^2*cos(x)-(cos(x))^2*sin(x))*dx=
INT(cos(x)-2*(sin(x))^2*cos(x)-2*(cos(x))^2*sin(x)+sin(x))*dx=
sin(x)-cos(x)+(2/3)*(cos(x))^3-(2/3)*(sin(x))^3+C;