Trigonometric Equations Question 52
Question: Values of $ \theta (0<\theta <360^{o}) $ satisfying $ cosec\theta +2=0 $ are
[EAMCET 1994]
Options:
A) $ 210^{o},300^{o} $
B) $ 240^{o},300^{o} $
C) $ 210^{o},240^{o} $
D) $ 210^{o},330^{o} $
Show Answer
Answer:
Correct Answer: D
Solution:
- $ \text{cosec }\theta +2=0 $
$ \Rightarrow $ $ \sin \theta =-\frac{1}{2} $
$ \Rightarrow $ $ \theta =210{}^\circ $ or $ 330{}^\circ $ .
BETA
