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NDA Math Sequences and Series
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© examsnet.com
Question : 38
Total: 79
The sum of the series
3
−
1
+
1
3
−
1
9
+
.
.
.
is equal to
[NDA II 2018]
20
9
9
20
9
4
4
9
Validate
Solution:
3
1
−
(
−
1
3
)
=
9
4
© examsnet.com
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