Assertion: trigonometric function's value | /r/HasProperty | easy to calculate
Facets:
value: for certain angles
type: OTHER
value: particularly
type: DEGREE
Source sentences:
text: However, the values of the trigonometric functions are easy to calculate by picking the simplest points on their terminal sides and then using the definitions in formulas Equation \ref{1.2} and
text: Another useful landmark is that for certain angles the values of the functions are particularly easy to calculate.