A) \[-2\]
B) 2
C) \[\frac{2}{\sqrt{3}}\]
D) \[\frac{-2}{\sqrt{3}}\]
Correct Answer: B
Solution :
\[\text{cosec}-\left( -\frac{7\pi }{6} \right)=-\text{cosec}\frac{7\pi }{6}\] \[=-\text{cosec}\frac{\pi }{6}=2\] \[=\text{cosec}\frac{\pi }{6}=2\]
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