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10 questions from this quiz
The sum of the first nnn terms
The nnnth partial sum
454545
It includes all previous terms plus one new
Tn=Sn−Sn−1T_n = S_n - S_{n-1}Tn=Sn−Sn−1
101010
545454
The starting value for nnn
The sequence of partial sums
2n−12n - 12n−1
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