Friday, 16 February 2018

elementary number theory - If p2,is divisible by 3, why is p also divisible by 3?

I came across this in proving that the √3 is irrational

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real analysis - How to find limhrightarrow0fracsin(ha)h

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