Question

=1. (11) 4. (1) Find the least positive integer n, satisfying 1-i) i If () (7) =x+iy, find xand y.​

Answer 1

Answer:

n=4

Step-by-step explanation:

Given, 1−i(1+i)n=1

⇒(1−i)(1+i(1+i)(1+i)n=1

⇒22in=1

in=1

The smallest integral value of n will be 4.