A) 2
B) 4
C) 6
D) 0
Correct Answer: B
Solution :
\[\underset{x\to \pi /6}{\mathop{\lim }}\,\,\frac{\cos e{{c}^{2}}\theta -4}{\cos ec\,\theta -2}=\underset{x\to \pi /6}{\mathop{\lim }}\,\,\cos ec\theta +2=4.\]
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