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Find the nth partial sum of the arithmetic sequence

1,4,9,16,25… ..n=10

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Jim S. | Physics (and math) are fun, reallyPhysics (and math) are fun, really
4.6 4.6 (159 lesson ratings) (159)
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Daisy,
 
 
    ∑1N n2 =(1/6)N(N+1)(2N+1)  =385 for N=10
 
Regards
Jim

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