Answer:
yes it is c you are correct
First subtract 2 revolutions from the - 840 :- (- (840-720) = -120
This gives sin -120 which is in the 3rd quadrant of the unit circle
sin -120 = - sin 60 = - sqrt3/2
Answer:
6 art course and 7 writing coures
The answer would be 6 (This is just to get 20 caracters NOT PART OF ANSWER)