If cos x = - cos(pi/6) and pi/2<x<pi, what is the value of x?
- just don't know how to work this out and would appreciate any help - thankyou!
- just don't know how to work this out and would appreciate any help - thankyou!
1 Answer
Sep 30, 2017
Explanation:
On the unit circle x is in Quadrant 2.
Check by using trig table.
Trig table shows: