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Mathematics 21 Online
OpenStudy (anonymous):

Find the first 5 terms of the sequence: an = n2 – 2n

OpenStudy (adamaero):

What number do you start a sequence with--for n?

OpenStudy (anonymous):

i dont know

OpenStudy (anonymous):

i dont understand these

OpenStudy (adamaero):

You can skim either one of these links, they both say the same general thing: http://www.mathsisfun.com/algebra/sequences-series.html http://www.purplemath.com/modules/series.htm

OpenStudy (anonymous):

okay thank you (:

OpenStudy (anonymous):

i dont understand the n

OpenStudy (adamaero):

it's just a variable type deal for this question all you need is n = 1, 2, 3, 4, 5

OpenStudy (adamaero):

when n = 1 2(n) - 2(n) = zero (first term)

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