Multiple Choice
Use a half-angle identity to find an exact value for the following, given the information about x.
-Find cos x given that cos
.
A) 
B) 
C) cos x = 3
D) 
Correct Answer:
Verified
Related Questions
Use a half-angle identity to find an exact value for the following, given the information about x.
-Find cos x given that cos
.
A) 
B) 
C) cos x = 3
D) 
Correct Answer:
Verified