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Algebra
Sequences
Arithmetic Sequences
The sequence an satisfy an = an-1 + n^2 and ao = 2009. Find a50.
2 answers
AAAaannndd the bot gets it wrong yet again!
∑(n=1..50) n^2 = 42925, not a measley 1275
a50 = 2009 + (50^2) + (49^2) + (48^2) + ... + (2^2) + (1^2) = 2009 + 1275 = 3284
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