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.

Please, sir, solve the problem on your own. The purpose of solving problems on that wonderful website is NOT to gain points or anything, but to enhance your problem solving skills. So please bear that in mind whenever you encounter any other problem in the future.

Also, you must have overlooked the FAQ section of that website. Users are explicitly discouraged to post any question from that site elsewhere, and any violator might be kicked out of Brilliant.

## Answer this Question

## Related Questions

- math - Find the minimum possible value of 2cos4θ+8cos3θ+32cos2θ+...
- Math - Calculus - The identity below is significant because it relates 3 ...
- Trig - Given that csc θ = -4 and tan θ > 0, find the exact value of...
- Trigonometry - There are four complex fourth roots to the number 4−4√...
- trigonometry - if cosθ=2/3 and tanθ<0 find the exact value sin(&#...
- math - if cosθ=2/3 and tanθ<0 find the exact value sin(θ-5&#...
- Trigonometry - Could someone please help me with the following q's I'm having ...
- Trig - Given that tan θ = - (√3/8) and θ is in QII, find the ...
- Trig - Given that cos θ = 5/13 and θ is in QIV, find the exact value ...
- precalculus - sinθ=12/13, θ lies in quadrant II. Find the exact value...