Question: Please help ff(1 point) (1 point) In this question, you may find the following formulae useful: i = =n(n + 1), 12 = =n(n +

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Please help \f\f(1 point) (1 point) In this question, you may findthe following formulae useful: i = =n(n + 1), 12 = =n(n+ 1)(2n + 1). Calculate 20 (12 - 27 + 1)

\f\f(1 point) (1 point) In this question, you may find the following formulae useful: i = =n(n + 1), 12 = =n(n + 1)(2n + 1). Calculate 20 (12 - 27 + 1)

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