cot x can be rewritten as cos x / sin x so, sin x + cos x. cosx / sin x sin x + (cos x)^2 / sin x Then if you multiply by sin x... sin x. sin x + sinx. (cos x)^2 / sin x which becomes (sin x)^2 + (cos x)^2 I'll leave the honors to you.
Old Man River. NOTE Old Man River was a standard part of Robeson's repertoire and appears on many of his albums. It also became William Warfield's signature song. Show Boat's 1927 premiere announced the advent of a new kind of musical. For the first time, characters developed and matured.
At the memorial service for actor Heath Ledger, Old Man was chosen as the song to play over a slideshow showing his various roles and life. Bob Dylan frequently covered this song on his 2002 tour. This song has appeared in various films over the years, including Due Date, Lords of Dogtown, and Wonder Boys.