Question

express i^-38 in the form(a+ib)​

Answer 1

Answer:

• i^-38=1/i^38............(1)
• we know that i^2=-1
• so i^38=(i^2)^19=(-1)^19=-1
• (1)~ 1/(-1)=-1
• a+ib = -1+0(i)