Find lim
I change tan to sin/cos , we have \lim_{x\to 0} \frac {\sin2x}{x\cos2x}
Using l'Hopital's rule,
I get \lim_{x\to 0} \frac {\cos2x}{(x)(-\sin2x)(\cos2x)} = \lim_{x\to 0} -\frac {1}{(x)(\sin2x)}
I can't proceed with l'Hopital's rule anymore here as I get 1/0.
No comments:
Post a Comment