Seems like the minimum value is 2 occuring at 3ði/4+2n*ði and 5ði/4+2n*ði , for any integer n.
Sinus and cosinus cancel each other , so do sec and cosec, tan and cot are each either -1 or +1.
Edited on March 2, 2014, 11:37 am
blackjack
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flooble's webmaster puzzle
answer
