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Mathematics
Mathematics
Problem
Find sum of 9 terms of G.P.
1
−
1
2
+
1
4
−
1
8
+
…
1 - \frac{1}{2} + \frac{1}{4} - \frac{1}{8} + \dots
1
−
2
1
+
4
1
−
8
1
+
…
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