Question

1 + i + i² + i³ is equal to​

Answer 1

Step-by-step explanation:

the answer to this question is

1+ i +i²+ i³

here if we ² or ³ i then we will get I only

therefore 1+i+i+i = 1+3i = 4i

Answer 2

Step-by-step explanation:

1+i+i2+i3

=1+i+(-1)+(-i)

=0

(1 and -1 get cancelled and i and -i get cancelled