Find the least positive integer 'n' such that `((1+i)/(1-i))^(n) =1`.

Find the least positive integer m such that ((1+i)/(1-i))^(4m)=1 .

Find the least positive integer n such that ((2i)/(1+i))^(n) is a positive integer.

Using De Moivre's theorem, find the least positive integer n such that ((2i)/(1+i))^(n) is a positive integer.

Find the least positive integer n foe which ((1+i)/(1-i))^(n)=1 .

Find the least positive integer n such that ((2i)/(1+i))^n is a positive integer.

Find the least positive integer n such that ((2i)/(1+i))^n is a positive integer.

Find the least positive integer n such that ((2i)/(1+i))^n is a positive integer.

Find the least positive integer n such that ((2i)/(1+i))^n is a positive integer.

Find the least positive integer n for which ((1+i)/(1-i))^n = 1

Find the least positive integer n for which ((1+i)/(1-i))^n