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(n)/(6) (n + 1)(2n + 1) - (n - 1)/(6) (n + - 1 + 1)(2(n - 1) + 1) ​

(n)/(6) (n + 1)(2n + 1) - (n - 1)/(6) (n + - 1 + 1)(2(n - 1) + 1) ​
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5 votes

(n)/(6) (n + 1)(2n + 1) - (n - 1)/(6) (n + - 1 + 1)(2(n - 1) + 1)
​

asked
User Bob Brunius
by
7.7k points

1 Answer

3 votes

Answer:

N2

Explanation:

answered
User Saneef
by
7.8k points
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