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Algebra
Question

Find all solutions of the equation in the interval...

Find all solutions of the equation in the interval \( [ 0,2 \pi ) \).  \(\cos ^ { 2 } \theta + 4 \cos \theta + 3 = 0\)

Write your answer in radians in terms of \( \pi \) . If there is more than one solution, separate them with commas. 

 

Answer

Yes, you are right.

Solution
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