Posted by Abhishek Ranjan on Sunday, June 16, 2013 at 11:05pm.
Find the minimum possible value of
2cos4θ+8cos3θ+32cos2θ+56cosθ+100

Geometry  Whatever, Monday, June 17, 2013 at 3:35am
Guys, don't give any numerical answer to this cheater. This question is lifted from a Mathematics and Physics Olympiad website, brilliant(dot)org, which gives points for every correct answer given to the problems there.
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