[code]O = (0, 3)[br]r = 3[br]c = Circle(O, 3)[br][br]t = Slider(0, 2 pi, 0.01, 2, 160, false, true, false, false)[br][br]I1 = Integral(1/8 sin(x + t + pi/2)+2.5, -4, 4)[br]I2 = Integral(1/4 sin(x + t + pi/3)+3, -4, 4)[br]I3 = Integral(1/2 sin(x + t + pi/4)+3.5, -4, 4)[br][/code]