Question

$\sqrt{2i}$ is equal to

• A. $1+i$
• B. $1-i$
• C. $-\sqrt{2i}$
• D. None of these

Answer 1

Answer: (A)

$\sqrt{2i}=\sqrt{1+i^2+2i}$
$=\sqrt{{\left(1+i\right)}^2}$
$=1+i$