In article ,
Larry Jaques wrote:

'Course, if you have a basic TRIG book in
there that he doesn't want...I've forgotten the 2 hours of trig
instrauction (1/2 dozen pages, IIRC) I received in Coleman College's
Computer Electronics Technology (comp repair) course back in '88.

Pretty basic, but easy to "ship", if you can live without paper. Your
local library probably has paper ones.

http://www.clarku.edu/~djoyce/trig/

http://www.free-ed.net/free-ed/Math/...trig02_SPK.asp

--
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