Question

Express the form of a+ib 1) i²+1/i²

Answer 1

Step-by-step explanation:

1+i

2

+i

4

+i

6

+i

8

+i

10

+i

12

+i

14

+i

16

+i

18

+i

20

=1+(−1)+1+(−1)+1+(−1)+1+(−1)+1+(−1)+1

=1 (Ans)

Formula:

i

2

=−1 and i

4

=1