# L4 Class 11 Maths Trigonometric Functions

Look in the mirror. That’s your competition.

# Lecture - 4 Chapter 3 Trigonometric Functions

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

 NCERT Exercise 3.2

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. $\cot \frac{-15 \pi}{4}$