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Use a sum or difference identity to find an exact value cos(15 degrees)

Use a sum or difference identity to find an exact value cos(15 degrees)
asked 53.6k views
4 votes
Use a sum or difference identity to find an exact value cos(15 degrees)

asked
User Prajwal
by
8.3k points

2 Answers

1 vote

Answer: i tried

cos(15)=1+√32√2. cos(15)=cos(45−30)

answered
User Rakesh Kasinathan
by
7.6k points
4 votes

Answer:


(√(2)+√(6))/(4)

Explanation:

PLATO

answered
User Blundin
by
8.6k points
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