Let x be a real number satisfying both the equations tan−1(x−1)+t – InterviewSolution

1.	Let x be a real number satisfying both the equations tan−1(x−1)+tan−1x+tan−1(x+1)=tan−13x and x3+bx2+cx+d=0. Then which of the following is/are correct:
Answer» Let $x$ be a real number satisfying both the equations ${tan}^{- 1} (x - 1) + {tan}^{- 1} x + {tan}^{- 1} (x + 1) = {tan}^{- 1} 3 x$ and $x^{3} + b x^{2} + c x + d = 0$ . Then which of the following is/are correct:

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