Tuesday 3 December 2019

calculus - Evaluating $ lim_{xto 0^+} (sin x)^x $

Evaluate the following limit.



$$ \lim_{x\to 0^+} (sin\ x)^x $$



What i have tried:



$$ ln\ [\lim_{x\to 0^+} (sin\ x)^x] $$




$$ \lim_{x\to 0^+} ln\ (sin\ x)^x $$



$$ \lim_{x\to 0^+} \frac{ln\ (sin\ x)}{\frac{1}{x}} $$



Applying l'hopital's rule.



$$ \lim_{x\to 0^+} \frac{cot\ x}{-x^{-2}} $$



If i keep applying l'hopital's rule, i get indeterminate form. Is what Iam doing right ?

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