Series and Sequence Sum (Jee Mains) | ExamDuo
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Series and Sequence Sum
Let
a
n
be the
n
th
term of the series
5
+
8
+
14
+
23
+
35
+
50
+
.
.
.
. and
Sn
=
n
∑
k
=
1
a
K
. Then
S
30
−
a
40
is equal to
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11280
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11290
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11310
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