(11) The boundary of the region below is described in polar coordinates by the formula 7(6) : x/6(7r2 02) for a certain range of angles 6 2 0. (a) Write down the formula for the area of a function expressed in polar coordinates as 7" : f(6) (look this up if you have to). (b) Using the graph determine What the limits of integration should be. Explain your reasoning. (c) Determine the area of the enclosed region