121k views
1 vote
Use the unit circle to find the exact value of the trig function
cos(210°)

1 Answer

0 votes

Answer:

-
√(3)/2

Explanation:

cos is negative in quad II

cos(210)= -cos(30) = -
√(3)/2

User James King
by
8.1k points

Related questions

asked Apr 15, 2024 197k views
Mikker asked Apr 15, 2024
by Mikker
8.2k points
1 answer
0 votes
197k views
1 answer
0 votes
108k views