We just started sigma notation and summations today....I'm hung up on one problem......the only rules we've been introduced to is if k (or i) is taken to the first, second or third power and we need the sumation, or one of a constant. I don't need to know this til Thursday, really, but i'd like to know now......I realize I'm probably missing some stupid ass factor I could take out...
Any Calc people?
The answer is 158/85......at least, that's what the back of the book says.
Is multiplying this out easier? Or is there a shortcut with the four rules we learned?