Express in degrees: radians
Suppose you know the values of and , and you want to evaluate the expression:
In which order would you carry out the four operations in the expression?
Multiply, add, subtract, divide
Divide, multiply, subtract, add
Multiply, subtract, add, divide
Add, subtract, multiply, divide
Subtract, add, multiply, divide
radians
and 
, and you want to evaluate the expression: