asked 197k views
3 votes
Use the half angle identity to determine cos105

2 Answers

4 votes

Answer: it is B I just did the review

answered
User Navid Rezaei
by
8.2k points
3 votes

Answer:


-\frac{\sqrt{2-√(3) } }{2}

Explanation:

B on edge

answered
User Reader Man San
by
8.2k points

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