Tuesday, 7 January 2020

summation - Evaluate sumlimitsnk=1frack2k

Evaluate n∑k=1k2k

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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}...