((75*cos(2*(1/2)))*sin(2*(1/2))^2)/2 – (75*sin(4*(1/2)))*sin(2*(1/2))/4
((75*cos(2/2))*sin(2/2)^2)/2 – (75*sin(4/2))*sin(2/2)/4
-75*sin(1)*sin(2)/4 + 75*sin(1)^2*cos(1)/2
37.5*sin(2*x)^2*cos(2*x) – 18.75*sin(2*x)*sin(4*x)
0
2
75*sin(2*x)*sin(4*x) 75*sin (2*x)*cos(2*x)
– ——————– + ———————
4 2
0
75*(-sin(4*x) + 2*cos(2*x)*sin(2*x))*sin(2*x)
———————————————
4
/ 3 3
2 2 / 2 2 75* – 4*sin (x)*cos(x) + 4*cos (x)*sin(x)/*cos(x)*sin(x)
150*cos (x)*sin (x)*cos (x) – sin (x)/ – ——————————————————–
2