Is there any simple form for following question?
$m=1^k+2^k+\cdots+n^k$
Answer
See Faulhaber's formula, for instance.
How to find $\lim_{h\rightarrow 0}\frac{\sin(ha)}{h}$ without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
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