Cos 600º + sin 600º -?

1 answer

since 600º = 360º+240º, you have

cos 240º + sin 240º

since 240º = 180º + 60º, you have

-cos 60º - sin 60º = -1/2 - √3/2 = -(1+√3)/2
Similar Questions
    1. answers icon 1 answer
    1. answers icon 1 answer
  1. Multiple ChoiceWhat is the sum of the interior angle measures of a 20-gon? (1 point) Responses 360o 360 o 3,240o 3,240 o 3,600o
    1. answers icon 1 answer
more similar questions