I am suppose to separate the last term of the given sequence.
$$\sum_{j=0}^n2^j$$
my work as shown...
$$
\sum_{j=0}^{n-1}2^j\ +\ 2^n$$
Does this appear wrong?
2026-04-03 02:19:27.1775182767
Separating out the last term of a given sequence
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