limn→∞n22n
Do you have some tips so I could solve this problem, without the use of L'Hôpital's rule?
Indeed, we didn't see formally L'Hôpital's rule, nor Taylor series so I'm supposed to do this without such "tools".
I've tried using the fact that
n2=e2log(n) and 2n=enlog(2) but didn't manage to eliminate my indeterminate form.
Thanks in advance.
Answer
There are many ways to do that. For example, you can prove that for n≥10 we have
2n>n3.
You can show that using the induction argument.
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