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STD 11 - 12. limits — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 12. limits4 Marks
Question
$\mathop {\lim }\limits_{\theta \to \frac{\pi }{2}} \frac{{\frac{\pi }{2} - \theta }}{{\cot \theta }} =$
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Answer

c
(c) Using  $ L-$ Hospital's rule, $\mathop {\lim }\limits_{\theta \to \frac{\pi }{2}} \frac{{ - 1}}{{ - {\rm{cose}}{{\rm{c}}^{\rm{2}}}\theta }} = 1$.

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