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Solve the equation for the interval [0, 2pi). cos^2x + 2 cos x + 1 = 0

Solve the equation for the interval [0, 2pi). cos^2x + 2 cos x + 1 = 0
asked 129k views
5 votes
Solve the equation for the interval [0, 2pi). cos^2x + 2 cos x + 1 = 0

asked
User Isagalaev
by
7.7k points

1 Answer

5 votes

The answer is x = π.

answered
User Jeromy Anglim
by
9.2k points
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