Page 107 - Calculus for the Clueless, Calc II

We could, of course, integrate cos x term by term and get sin x. We could go on and on, getting every property
of the sine and cosine and all other trig functions totally without angles or triangles. The beauty of these power
series is that they are limits of polynomials and are easy to deal with. Yet there are things that are even more
powerful in mathematics. But they must wait for another book.

Late Note

My insightful publisher, in his infinite wisdom, has decided to publish my Calc III. Please look for it in your
quality bookstore, the one that carries my books.