Show that lim((cos pix)^{2n}) exists for all x in R ? I figured that the limit will be 1 when x belongs to Z and 0 otherwise. But how can i show that the limit actually exists? Help will be appreciated.
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Originally Posted by mrmaaza123 Show that lim((cos pix)^{2n}) exists for all x in R ? I figured that the limit will be 1 when x belongs to Z and 0 otherwise. But how can i show that the limit actually exists? I don't really know what you mean by showing. We all know that
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