Evaluate the telescoping series or enter DNE if it diverges.∑n=1∞cot(n)−cot(n+1)=\displaystyle {\sum_{{{n}={1}}}^{{\infty}}}{\cot{{\left({n}\right)}}}-{\cot{{\left({n}+{1}\right)}}}=n=1∑∞cot(n)−cot(n+1)= \displaystyle
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