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JEE Main 9 Jan 2019 Shift 2 Solved Paper

Section: Mathematics
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Question : 55 of 90
 
Marks: +1, -0
The sum of the following series
1 + 6 +
9(12+22+32)
7
 +
12(12+22+32+42)
9
 +
15(12+22+...+52)
11
 + ... upto 15 terms is :
[9 Jan 2019 Shift 2]
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