nd write the answer in standard form.

Question

Find  and write the answer in standard form. 

	A.
	B.
	C.
	D.

Find  and write the answer in standard form. 

	A.
	B.
	C.
	D.

 

Answer 1

(1).

The expression is .

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

Now

The option A is correct.

Answer 2

(2).

The expression is

Apply De Moivre’s Theorem :

The option C is correct