Posted: Feb 17, 2012 10:20 am
Just a thought. When you come to differentiating sines and cosines, would it make sense to introduce the series of these terms to show why we get the result?
e.g. sinx=x+x^3/3!+x^5/5!.... so when differentiated we get 1+x^/2!+x^4/4! etc... (which is cosx).
e.g. sinx=x+x^3/3!+x^5/5!.... so when differentiated we get 1+x^/2!+x^4/4! etc... (which is cosx).