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Use the half angle identity to determine cos105
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3 votes
Use the half angle identity to determine cos105

User Clay Nichols
by
4.3k points

2 Answers

4 votes

Answer: it is B I just did the review

User Navid Rezaei
by
4.1k points
3 votes

Answer:


-\frac{\sqrt{2-√(3) } }{2}

Explanation:

B on edge

User Reader Man San
by
4.2k points
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