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Geometric Sequences
medium
0:00.0
Sum
1
+
x
+
x
2
1+x+x^2
1
+
x
+
x
2
.
A
1
+
x
+
x
2
1+x+x^2
1
+
x
+
x
2
B
3
x
3x
3
x
C
x
3
x^3
x
3
D
None
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