AP EAMCET Engineering 21 Apr 2019 Shift 2 Paper

Section: Mathematics

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Question : 24 of 160

Marks: +1, -0

if

n

Σ

k=1

tan−1 (

1

k2+k+1

) = tan−1 (θ) , then θ =

n
n+2
n
n+1
1
n
n−1

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