\f1. Let f (x) = 4x2-2 Find the exact area under the curve on the interval [0,4] using the limit of a Riemann sum. The steps below are given. (1) Ax = (2) X; = (3) Find the simplified formula for the heights. Redo f ( x; ) = (4) Find the simplified formula for the area. F f ( x, ) Ar = (5) Find the simplified formula for the sums. Efx; )AX = 1=1 (6) Evaluate the limit for the exact area. lim Ef(x; )Ax = i= 1 ENTER