Question

simplify :
(I):
${(2 - i)}^{2}$
(ii)
$( -1 - i \sqrt{ {3)}^{2} }$
(iii)
${ (- 1 + i \sqrt{3)} }^{2}$
(iv)
${(1 + i)}^{ 3}$
(v)
$\frac{ \sqrt{2 + i} }{ \sqrt{2 - i} }$
(vi)

$\frac{1 + i}{1 - i}$
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Answer 1

Step-by-step explanation:

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Answer 2

refer to the attachment