Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
For
f
(
x
)
=
2
x
+
1
x
−
3
f(x)=\dfrac{2x+1}{x-3}
f
(
x
)
=
x
−
3
2
x
+
1
where
x
≠
3
x\neq 3
x
=
3
, the expression for
f
−
1
(
x
)
f^{-1}(x)
f
−
1
(
x
)
is a)
3
x
−
1
x
+
2
\dfrac{3x-1}{x+2}
x
+
2
3
x
−
1
b)
x
−
2
3
x
+
1
\dfrac{x-2}{3x+1}
3
x
+
1
x
−
2
c)
3
x
+
1
x
−
2
\dfrac{3x+1}{x-2}
x
−
2
3
x
+
1
d)
3
x
+
1
2
−
x
\dfrac{3x+1}{2-x}
2
−
x
3
x
+
1
Browse the problem library