Find the minimum value of | sin x + cos x + tan x + cot x + sec x + csc x | for any real number x.

(In reply to re: answer by broll)

and also at the complementary angle to that, which is -1.08264952471865..., or, placed into a positive context by adding 2*pi, 5.20053578246093, as the sines switch values with the cosines, etc.

Posted by Charlie on 2014-03-02 18:45:59