Tutorial Exercise Use the Midpoint Rule with the given value of n to approximate the integral. 10 x3 + 4 dx, n = 4 Step 1 We must calculate M4 = > f( x, )Ax = f( x1 ) + f(X2) + f(X3) + f(X4) Ax, where X1, X2, X3, X4 represent the i = 1 midpoints of four equal sub-intervals of [2, 10]. Since we wish to estimate the area over the interval [2, 10] using 4 rectangles of equal widths, then each rectangle will have width Ax = Submit Skip (you cannot come back)