Question

Help please!!!!!
Use the summation formulas to find the exact area between the graph of f(x) = x^2 + 4 and the x-axis from x = 0 to x = 2

Answer 1

Thanks @robtobey

Answer 2

The attachment may not be the the result of using the "summation formulas", however, the result is an exact answer.

Answer 3

Oh I know how to get an exact answer, but I must use this method of summation. I'm just getting 8.66666 not 10.666

Answer 4

http://www.millersville.edu/~bikenaga/calculus/area/area.html