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(e) n=1∑∞​(4n2+1​−n)

Posted: Thu Jul 14, 2022 4:43 pm
by answerhappygod
E N 1 4n2 1 N 1
E N 1 4n2 1 N 1 (6.29 KiB) Viewed 41 times
(e) n=1∑∞​(4n2+1​−n)