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.
From Showboat's 2nd version (1936) Paul Robeson-Ol' Man River. Ol' Man River (Jerome Kern-Oscar Hammerstein II). Lyrics from the Original Libretto. Dare's an ol' man cal'd de Mississipi. Dat's de ol' man dat I'd lek to be. Whot does he care. iv de world gets trauble. Whot does he care iv de land lev's free.