Find the values of the trigonometric functions in Exercises 6 to 10:
7. cosec (– 1410°)

Solution:

cosec ( – 1410°) = cosec ( – 1410° + 4 × 360° )

We know that the values of cosec x (any trigonometric function) repeat after an interval of 360° or 2 π.

⇒ cosec ( – 1410°) = cosec ( 30° )

⇒ cosec ( – 1410°) = 2 (Using trigonometric table)

NCERT Solutions Class 11 Maths Chapter 3 Exercise 3.2 Question 7

Find the values of the trigonometric functions in Exercises 6 to 10. 7) cosec (– 1410°)

Summary:

The value of cosec (–1410°) = 2. We know that the values of cosec x (any trigonometric function) repeat after an interval of 360° or 2π.