Oh, I forgot to mention.
On #2 and #4 someone put them into some computer software and said they came out negative... but I can't find any errors on my work?
Homework Statement
I have a few questions, and I already have (some of) the right answers (or so I think.. but I don't understand them)
(Just finding the anti-derivative)
1. http://www.codecogs.com/eq.latex?\int_{}^{}\sin\left(8z-5\%20\right)
My answer: -cos (4z^2-5z) (not sure if I...