how to solve tan-1 2x/1-x2 + cot-1 1-x2/2x = pie/3

tan-1(2x1-x2) +cot-1(1-x22x) =π3As tan-1x =cot-11xSo  tan-1(2x1-x2) +tan-1(2x1-x2) =π3So 2 tan-1(2x1-x2) =π3Or   tan-1(2x1-x2) =π6So tan( tan-1(2x1-x2)) =tanπ6Or 2x1-x2 = 13Or x2 +23-1=0Or x = -3±2 (ans)

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