Midpoint Formula Calculus: Example 2 Use the midpoint rule to estimate the area under the curvef(x)=x2+5fromx=0tox=12usingn=6rectangles and midpointsm1=1,m2=3,m3=5,m4=7,m5=9, andm6=11. Then, use a graphing calculator to solve the integral∫012x2+5d(x). Compare the results ...