Sunday, 18 September 2016

real analysis - How to evaluate the following limit



How can I determine the following limitlimnln(n)nx

where x[2,)



WolframAlpha tells me the limit is 0, but I am not sure how to go about calculating it manually, I suspect L'Hospital plays a role?



Answer



From L'Hospital's Rule, we have



limnlnnnx=limn1/nxnx1=1xlimn1nx=0



when x>0


No comments:

Post a Comment

real analysis - How to find limhrightarrow0fracsin(ha)h

How to find limh0sin(ha)h without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...