If angle z is in the second quadrant then can not possibly have been ...
Hello fellow users, I have 2 questions, thanks in advance!
Question 1:
Angle z lies in the second quadrant and . Determine an exact value for sin2z.
K, so when I attempted this question, I got 120/169, I am not sure if it is -120/169, or 120/169.
Question 2:
and an angle and then apply a confunction identity to find the measure of y.
Given that , and y lies in the third quadrant, express as a difference between
I legit have no idea what to do for this!