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Mathematics
Mathematics
Problem
Find the sum of each of the following infinite geometric series: a.
18
−
12
+
8
−
…
18 - 12 + 8 - \dots
18
−
12
+
8
−
…
b.
8
+
4
2
+
4
+
…
8 + 4\sqrt{2} + 4 + \dots
8
+
4
2
+
4
+
…
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