Question

please solve this problem now. abxiievwi​

Answer 1

Answer:

$\sqrt{2.}$

Step-by-step explanation:

$z1 = 2 - i \\ \\ z2 = 1 + i \\ \\ | \frac{z1 + z2 + 1}{z1 - z2 + 1} | = | \frac{2 - i + 1 + 1 + i}{2 - i - 1 - i+ 1} | \\ \\ = | \frac{4}{2 - 2i} | \\ \\ = | \frac{2}{1 - i} | \\ \\ = | \frac{2}{ \sqrt{2} } | \\ \\ = \sqrt{2} .$

Answer 2

Answer:

I hope this will be helpful to you