Friday, 23 June 2017

divisibility - Derive a formula to find the number of trailing zeroes in n!







I know that I have to find the number of factors of 5's, 25's, 125's etc. in order to do this. But how can you derive such a formula for any number n?

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real analysis - How to find limhrightarrow0fracsin(ha)h

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