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

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

The least positive integer n for which ((1+i)/(1-i))^n= 2/pi sin^-1 ((1+x^2)/(2x)) , where x> 0 and i=sqrt-1 is

The least positive integer n for which ((1+i)/(1-i))^(n)=(2)/(pi)(sec^(-1)""(1)/(x)+sin^(-1)x) (where, Xne0,-1leXle1andi=sqrt(-1), is

The last positive integer n for which ((1+i)/(1-i))^(n) is real, is

The smallest positive integer n for which ((1+i)/(1-i))^n=1 is (a) 8 (b) 16 (c) 12 (d) None of these

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.

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

What is the smallest positive integer n for which (1+i)^(2n)=(1-i)^(2n) ?