Help this is a math olympiad question (my school's math competition)

Question

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what is 1²+2²+3²+......+n² ? you need to express it using a simple expression

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Best Answer

what is 12+22+32+......+n2 ? you need to express it using a simple expression

=[n(n+1)(2n +1)] / 6

Guest Jul 4, 2017

Guest · Answer 1 · 2017-07-04T02:50:47

what is 12+22+32+......+n2 ? you need to express it using a simple expression

=[n(n+1)(2n +1)] / 6