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LekaFEV [45]
3 years ago
6

Find all solutions to the equation. cos^2 x + 2 cos x + 1 = 0

Mathematics
1 answer:
Helen [10]3 years ago
7 0

Answer:

x = \pi  +2\pi n

Step-by-step explanation:

Radian:  \pi  + 2 \pi n

Degree: x = 180 degree, 360 degree

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