(1 point) The area A of the region S that lies under the graph of the continuous function f on the interval la,b] is the limit of of the areas of approximating rectangles: where Ar = and Xi = a + idw . Use this definition to find an expression for the area A under the graph of the function,f(x) = ,8+1 on the interval [2.4] . A = 'lim2 | (16n(n-i))/(4(n+1)^2))x(2/n) i=1