FRQ 2 A graphing calculator may be used for the following problem. .1} x} = Ig- + e"'2'8-"+1 Letfand g be the functions defined by'x) = Ex + erg3" + 1, and g(x) = x;' + 4x + 2. Let Q and R be the two regions enclosed by the graphs offand 9 shown in the figure above. a) Find the sum of the areas of regions Q and R. b) The region Q is the base of a solid whose cross sections perpendicular to the xaxis are squares. Find the volume of the solid. c) The vertical line x = k divides region R into two equal regions with equal areas. Write, but do not solve, an equation involving integral expressions whose solutions give the value k