[int(cos5x+cos4x)/(1-2cos3x)dx" is equal to "],[[" 1) "-sin2x-sin x+cquad " 2) "-(1)/(2)sin2x+sin x+c],[" 3) "-(1)/(2)sin2x-sin x+c" 4) "(1)/(2)sin2x+sin x+c]]