4.) Given the curves : -+1 = 15x andy = 3 cos x with the given plot shown in the Figure-2 (a) Provide the Equation of the integral (w/o solving it.) that described the areas bounded by the two curves. (a.1.) A solution by integrating the equation using Horizontal orientation (dy). 3 5 points (a.2.) A solution by integrating the equation using Vertical Orientation (dx). >5 points (b) if the vertical axis (y) or the line x = 0, will be the axis of rotation, of which, the half of the area bounded by the curves given, provide the equations of the volume of the strip X,' and X2' rotated on the line x = 0. > 5-points. X 4 +1 =151 (-0.763, 2.169) (0.763, 2.169) X -In X1' dy J' = 2.109 Y1' X Figure-2: (0, -3) dx