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Solution to 2cos2x − cos x − 1 = 0
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2 votes
Solution to 2cos2x − cos x − 1 = 0

User Astrochun
by
9.1k points

2 Answers

3 votes
{0,2π3,4π3} should be the answer?

User Odelu
by
8.3k points
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0 degrees :) Hope this helps! A for plato


User Dean Lunz
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