Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Show that
(
4
5
)
−
2
=
25
16
\left(\frac{4}{5}\right)^{-2} = \frac{25}{16}
(
5
4
)
−
2
=
16
25
Browse the problem library