Calculus Section 2.6 We have come to the end of Section 2.6 before moving on to derivatives and rates of change. As you know, I like to end each section by posting a few proofs and/or problems that I just don't know how to solve. I don't understand how to do part (a). See my work for part (b). [ATTACH=full]3323[/ATTACH] [ATTACH=full]3324[/ATTACH]