(1).

The expression is $\"image\"$ .

To apply De Moivre’s Theorem, we must first write the complex number in polar form. Since the magnitude of (1 - i) is $\"image\"$ , we begin by writing

$\"\"$

Now

$\"\"$

$\"image\"$

The option A is correct.

(1).

The expression is $\"image\"$ .

To apply De Moivre’s Theorem, we must first write the complex number in polar form. Since the magnitude of (1 - i) is $\"image\"$ , we begin by writing

$\"\"$

Now

$\"\"$

$\"image\"$

The option A is correct.