Question

hey can you please help me posted picture of question

Answer 1

The correct answer is the option B.To solve this problem you must apply the proccedure shown below:

 1. You have the following expression:

 (11-7i)-(16-11i)

 2. If you want to substract both terms, you  need to substract the real numbers and the complex numbers. Then, you obtain:

 11-7i-16+11i
 (11-16)+(-7+11)

 3. Then, you obtain the following result:

 -5+4i

 4. Therefore, as you can see, the correct answer is the second option (option B), which is:

 B. -5+4i

Answer 2

Correct answer is option B.

Solution is shown below:

To add or subtract two complex numbers, the real part is added or subtracted from real part and the complex part is added to or subtracted from complex part as shown below:

(11 - 7i) - (16 - 11i)

= 11 - 7i - 16 + 11i

= -5 + 4i

So, the answer to this question is option B