Hello. I need help learning how to do this. I actually undersrtand everything except why these 2 are appearing.
Can anyone explain to me why they appear on these (f)avg equations?
I only took a quick look at it, but it would appear that when you substitute (-3) and subtract it, you actually get the same term as when you substitute (+3). (Symmetric function?)
So you actually have this:
$\displaystyle 2 \times \frac{1}{6} \left[ \frac{x^3}{3} + 7x \right] ^{3} _{-3}$