SOLUTION: Rewrite in terms of sin(x) and cos(x). cos(x-(5pi)/6)

Algebra ->  Trigonometry-basics -> SOLUTION: Rewrite in terms of sin(x) and cos(x). cos(x-(5pi)/6)      Log On


   



Question 1204674: Rewrite in terms of sin(x) and cos(x).
cos(x-(5pi)/6)

Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
Use formula cos%28alpha-beta%29%22%22=%22%22cos%28alpha%29cos%28beta%29%2Bsin%28alpha%29sin%28beta%29

cos%28x-%285pi%29%2F6%29%22%22=%22%22

cos%28x%5E%22%22%29cos%28%285pi%29%2F6%29%2Bsin%28x%5E%22%22%29sin%28%285pi%29%2F6%29%22%22=%22%22

cos%28x%5E%22%22%29%28-sqrt%283%29%2F2%29%2Bsin%28x%5E%22%22%29%281%2F2%29%22%22=%22%22

-%28sqrt%283%29%2F2%29cos%28x%5E%22%22%29%2B%281%2F2%29sin%28x%5E%22%22%29%22%22=%22%22

%281%2F2%29sin%28x%5E%22%22%29-%28sqrt%283%29%2F2%29cos%28x%5E%22%22%29%22%22=%22%22

%28sin%28x%5E%22%22%29-sqrt%283%29cos%28x%5E%22%22%29%29%2F2%5E%22%22

Edwin