cos ( 36 0 0 − α ) = cos α cos 30 0 0 = cos ( 36 0 0 − 6 0 0 ) = cos 6 0 0 = 2 1
Cos(300 degrees)=.5
You can use an online graphing calculator to find this
The cosine of 300 degrees is 2 1 . This is determined by finding the reference angle, which is 60 degrees, and knowing that the cosine of 60 degrees is 2 1 . Therefore, cos ( 300° ) = 2 1 .
;