JEE Main 202117 Mar, Morning shiftMathematicsMediumTrigonometry118× since 2002The sum of possible values of x for tan^−-−1(x + 1) + cot^−-−1(1x−1)\left( {{1 \over {x - 1}}} \right)(x−11) = tan^−-−1(831)\left( {{8 \over {31}}} \right)(318) is :AOption A. −-−324{{{32} \over 4}}432BOption B. −-−334{{{33} \over 4}}433COption C. −-−314{{{31} \over 4}}431DOption D. −-−304{{{30} \over 4}}430CheckSkip · show solution
