Answer:
9, -3
Step-by-step explanation:
Complex numbers are divided into two parts; real and imaginary parts. The value of Z3 is 
Given that:


Since O is the origin, then:

This means that:

So, we have:

Collect like terms


Hence, complex number Z3 is 
Read more about complex numbers at:
brainly.com/question/18509723
Answer:

Step-by-step explanation:



Answer:
627,264 square inches
Step-by-step explanation:
multiply all the numbers together