Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Simplify when possible. The answers are in Chapter 23, starting on page 464. 9. Find
f
′
(
x
)
f^{\prime}(x)
f
′
(
x
)
if
f
(
x
)
=
x
2
+
1
x
2
−
1
f(x)=\sqrt{\frac{x^{2}+1}{x^{2}-1}}
f
(
x
)
=
x
2
−
1
x
2
+
1
.
Browse the problem library