Working with unit circle in trigonometry through horizontal line, coterminal angles and allied angles

Find the values of the trigonometric functions in Exercises 6 to 10.

6. \(\sin 765°\)

7. \(cosec (-1410°)\)

8. \(\tan \frac{19 \pi}{3}\)

9. \(\sin \frac{-11 \pi}{3}\)

10. \(\cot \frac{-15 \pi}{4}\)