Friday, 23 December 2016

inequality - How to prove the fraction identity without using calculator

How to prove without calculator that



$$ \frac{1}{1001} + \frac{1}{3001} > \frac{1}{1000}$$

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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}...