Question

Consider w1 = 4 – 4i and w2 = –2. What is w2 – w1?

a. 2 – 4i
b. 2
c. 4i – 6
d. -6 - 4i

Answer 1

The result of the subtraction expression is -6 + 4i

Using the parameters given for our Calculation;

• w1 = 4 – 4i
• w2 = –2

To calculate w2 - w1 , we write ;

w2 - w1 = -2 -(4 - 4i)

Now we have ;

- 2 - 4 + 4i

-6 + 4i

Hence, the result is -6 + 4i. Option C