Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
The function
f
(
x
)
=
cot
−
1
(
x
+
3
)
x
+
cos
−
1
x
2
+
3
x
+
1
f(x) = \cot^{-1}\sqrt{(x+3)x} + \cos^{-1}\sqrt{x^2+3x+1}
f
(
x
)
=
cot
−
1
(
x
+
3
)
x
+
cos
−
1
x
2
+
3
x
+
1
is defined on the set
S
S
S
, where
S
S
S
is equal to: (a)
{
0
,
3
}
\{0, 3\}
{
0
,
3
}
(b)
(
0
,
3
)
(0, 3)
(
0
,
3
)
(c)
{
0
,
−
3
}
\{0, -3\}
{
0
,
−
3
}
(d)
[
−
3
,
0
]
[-3, 0]
[
−
3
,
0
]
Browse the problem library