Wednesday, 18 October 2017

divisibility - Show that the number $n$ is divisible by $7$

How can I prove that $n = 8709120$ divisible by $7$?
I have tried a couple methods, but I can't show that. Can somebody please help me?

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real analysis - How to find $lim_{hrightarrow 0}frac{sin(ha)}{h}$

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}...