Asked by irene
the sum of the first nth term of a linear sequence (a-p)is 2n^2-n-1.find the nth term
Answers
Answered by
J-Bean/Be Nice
errr thats a hard one
Answered by
oobleck
n/2 (a1+an) = 2n^2-n-1
an = 2/n (2n^2-n-1) - a1
an = 2/n (2n^2-n-1) - a1
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