Cot x is 1/tan x or cos x / sin x or +- sqrt cosec^2 x -1.
Original Cast Recording. Arista, 1973. Includes original hit song Day by Day sung by Robin Lamont. Sung by the original cast members David Haskell, Peggy Gordon, Robin Lamont, Gilmer McCormick, Sonia Manzano, Jeffrey Mylett, Stephen Nathan, Herbie Braha, Joanne Jonas, and Lamar Alford.
Once (2007) R | 1h 25min | Drama, Music, Romance | 15 June 2007 (USA) A modern-day musical about a busker and an immigrant and their eventful week in Dublin, as they write, rehearse and record songs that tell their love story.