Question

if a=1+i, than a²=?​

Answer 1

Answer:

2i

Step-by-step explanation:

a^2 = (1+i)^2

= 1 + i^2 +2i

= 1 - 1 + 2i

= 2i

Answer 2

Answer:

2i

Step-by-step explanation:

a² = (1+i)²

a² = 1 + i² + 2i

a² = 1 - 1 + 2 i

a² = 2i