JEE Main 201816 Apr, Morning shiftMathematicsEasyComplex Numbers and Quadratic Equations264× since 2002The least positive integer n for which (1+i31−i3)n=1,{\left( {{{1 + i\sqrt 3 } \over {1 - i\sqrt 3 }}} \right)^n} = 1,(1−i31+i3)n=1, is :AOption A. 2BOption B. 3COption C. 5DOption D. 6CheckSkip · show solution