TS EAMCET 03 May 2019 Shift 1 Solved Paper

Section: Mathematics

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Question : 20 of 160

Marks: +1, -0

The period of cos (x + 8x + 27x + ... + n3x) is

2π
n
2π
n2(n+1)2
8π
n2(n+1)2
8π
n3(n+1)2

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