8. Find the area of a f(x) = ex- ex, the x-axis, the line x = -1 and the line x = 1. b f ( x ) = - 3 2 - x , the x-axis, the line x = -1 and the line x = 1. C Find the area of the region bounded by the graphs of y = 2 - x2 and y = x, over the interval 0 s x s 1