COS Returns a float value that is the cosine of the angle passed in as a parameter
Note that this angle passed in must be in radians. 7> 8> SELECT COS(1.2) 9> GO ------------------------ 0.36235775447667362 (1 rows affected) 1> SELECT COS(ACOS(0.5)) 2> GO ------------------------ 0.49999999999999989 (1 rows affected)