SOLUTION: Use an identity to find the exact value of each expression: Note: You are not allowed to use decimals in your answer. tan(202°)+tan(128°)/1-tan(202°)tan(128°) =

Algebra ->  Trigonometry-basics -> SOLUTION: Use an identity to find the exact value of each expression: Note: You are not allowed to use decimals in your answer. tan(202°)+tan(128°)/1-tan(202°)tan(128°) =      Log On


   



Question 1183304: Use an identity to find the exact value of each expression:
Note: You are not allowed to use decimals in your answer.
tan(202°)+tan(128°)/1-tan(202°)tan(128°) =

Found 2 solutions by Edwin McCravy, ikleyn:
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
tan%28A%2BB%29%22%22=%22%22%28tan%28A%29%2Btan%28B%29%29%2F%281-tan%28A%29tan%28B%29%29

tan%28202%5Eo%2B128%5Eo%29%22%22=%22%22%28tan%28202%5Eo%29%2Btan%28128%5Eo%29%29%2F%281-tan%28202%5Eo%29tan%28128%5Eo%29%29

tan%28330%5Eo%29%22%22=%22%22%28tan%28202%5Eo%29%2Btan%28128%5Eo%29%29%2F%281-tan%28202%5Eo%29tan%28128%5Eo%29%29

tan%28330%5Eo%29%22%22=%22%22-sqrt%283%29%2F3  <--corrected.

Edwin

Answer by ikleyn(52803) About Me  (Show Source):