Question

Which of the following is equivalent to the expression? i^22

A.) -1

B.) i

C.) 1

D.) -i

Answer 1

i^22 can be written as (i^2)^11

Where i^2 =-1

(i^2)^11=(-1)^11

= -1 (Since 11 is an odd number)

So Option A is correct.