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Byju's Answer
Standard X
Mathematics
Formula for Sum of n Terms of an AP
If tn denot...
Question
If
t
n
denotes the nth term of the series
2
+
3
+
6
+
11
+
18...
, then
t
49
=
A
2
+
49
2
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B
2
+
48
2
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C
2
+
50
2
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D
2
+
51
2
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Solution
The correct option is
B
2
+
48
2
given series is
2
+
3
+
6
+
11
+
18.....
n
t
h
term of the series will be
t
n
=
2
+
(
n
−
1
)
2
so,
t
49
=
2
+
(
49
−
1
)
2
t
49
=
2
+
48
2
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0
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Q.
If
t
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2
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If
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2
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6
+
11
+
18
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Q.
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denotes
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