(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

cos^2 x-cos x- 1= 0

2. Relevant equations

several trig identities involving cos

3. The attempt at a solution

i tried applying identites everywhere, no luck. ive tried using it as a trinomial...no luck....and ive tried adding one to both sides and still no luck....please help lol

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# Homework Help: Satisfying trig equations between (0,2pi)

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