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Indefinite Integrals

Section: Mathematics
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Question : 39 of 89
 
Marks: +1, -0
If ∫
dx
(x2+x+1)2
 =a‌tan−1(
2x+1
√3
) +b(
2x+1
x2+x+1
)+C,x>0 where C is the constant of integration, then the value of 9(√3a+b) is equal to
[27 Aug 2021 Shift 1]
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