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.
The superb theme tune and series music was written by Mungo Jerry's Ray Dorset. Episode 1 The P to S Day-Billy and Pincy set up a dating agency and burglar alarm company but as ever seem to spend their time getting out of scrapes. Aired date: Feb 19, 1986 Channel 4. FOR EDUCATIONAL PURPOSES ONLY.