- 1+cosx=2cos^2(x/2)?

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How many years does it take for human bones to turn into dust? How do I recognize high versus low potential energy bonds by degree of oxidation/reduction of atoms? List possible sources of error in the method of finding the mass of a single coin? Can anyone divide these two problems? 1. (2x^5+10^3+9x^2-3x-9) / (x^2-1) 2. (6x^3+11x^2+13x+30) / (3x+6)? If it turned out there is a civilization on the Moon, what would be the implications?

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