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Standard XII
Mathematics
Question
Choose the correct answer from the alternatives given.
If
1
2
+
2
2
+.... +
x
2
=
x
(
x
+
1
)
(
2
x
+
1
)
6
then
1
2
+
3
2
+
5
2
+ .... +
19
2
is equal to
1330
2100
2485
2470
A
2100
B
2470
C
1330
D
2485
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Solution
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