TITLE: Factorization of the sine
QUESTION [5 upvotes]: I am working on the Basel problem for a project for my Mathematics study. I need to prove that one could write the sine as a factorization of its linear roots. I know the proofs is in general done using the Weierstrass Factorization theorem but are there any other proofs specifically for the sine that are less complicated?
P.S. I'm in my first year as a Mathematics student so my knowledge is limited.

REPLY [4 votes]: Perhaps you will be interested in this: http://arxiv.org/pdf/math/0701039.pdf
It uses means and methods that you will likely don't have difficulty in understanding-with a bit of further studying perhaps-while being one of the best approaches to the problem I have seen..