Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
If
x
+
i
y
=
±
(
a
+
i
b
)
\sqrt{x+iy} = \pm(a+ib)
x
+
i
y
=
±
(
a
+
ib
)
, then
−
x
−
i
y
\sqrt{-x-iy}
−
x
−
i
y
is equal to
Browse the problem library