Trigonometric Equations Question 357
The most general value of $ \theta $ satisfying the equations $ \sin \theta =\sin \alpha $ and $ \cos \theta =\cos \alpha $ is $ \theta = \alpha + 2\pi n $, where $ n $ is any integer.
[IIT 1971; Karnataka CET 1993; DCE 1999]
Options:
A) $ 2n\pi +\alpha $
B) $ 2n\pi -\alpha $
C) $ n\pi +\alpha $
D) $ n\pi -\alpha $
Show Answer
Answer:
Correct Answer: A
Solution:
- It is obvious.
BETA
