Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
5. If
z
1
=
2
−
i
,
z
2
=
1
+
i
z_{1}=2-i, z_{2}=1+i
z
1
=
2
−
i
,
z
2
=
1
+
i
, find
∣
z
1
+
z
2
+
1
z
1
−
z
2
+
1
∣
\left|\frac{z_{1}+z_{2}+1}{z_{1}-z_{2}+1}\right|
z
1
−
z
2
+
1
z
1
+
z
2
+
1
.
Browse the problem library