Not sure if you wanted the exact value or the degrees. Here’s both:
1: sin pi/3 = 60° or sqrt of 3 over 2
2: cos 2pi/3 = 120° or -1/2
3: tan 7pi/4 = 315° or -1
4: tan 5pi/6 = 150° or -sqrt of 3 over 3
5: sin 7pi/6 = 210° or -1/2
6: cos 11pi/6 = 330° or square rt of 3 over 2
Formula I used:
Problem (example: 11pi/6) times 180° over pi.
