2. ## Re: Help solve problems

Have you tried anything?

3. ## Re: Help solve problems

No, I don't know how to start

4. ## Re: Help solve problems

Originally Posted by Pavlgd123
No, I don't know how to start
How is that possible. The first is trivial.
$|z|=\sqrt{\Re^2(z)+\Im^2(z)}$ If you don't know the basics of complex numbers, you cannot understand any of this.