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Geometric Sequences
hard
0:00.0
What is
a
1
a_1
a
1
for
a
n
=
k
⋅
1
n
−
1
a_n = k \cdot 1^{n-1}
a
n
=
k
⋅
1
n
−
1
?
A
k
k
k
B
1
1
1
C
0
0
0
D
None
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