SOLUTION: Find the exact value of cos 75° Thank you!

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Question 359833: Find the exact value of cos 75°
Thank you!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: Use the identity cos%28x%2By%29=cos%28x%29cos%28y%29-sin%28x%29sin%28y%29. Then let x=45 and y=30 and evaluate each trig function on the right side.