AP EAMCET Engineering 2015 Code C Paper

Section: Mathematics

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Question : 48 of 160

Marks: +1, -0

The value of the sum 1.2.3+2.3.4+3.4.5+... upto n terms=

1
6
n2(2n2+1)
1
6
(n2−1)(2n−1)(2n+3)
1
8
(n2+1)(n2+5)
1
4
n(n+1)(n+2)(n+3)

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