Let {ak}∞k=0 be a sequence where
Show that every element of this sequence is even.
I am stuck on the induction step, and can't seem to prove that an is even ⟹a(n+1) is even . Could someone please give me some hints.
How to find limh→0sin(ha)h without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
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