Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Let
g
(
x
)
=
⌊
x
⌋
+
sgn
(
x
)
g(x)=\lfloor x\rfloor+\operatorname{sgn}(x)
g
(
x
)
=
⌊
x
⌋
+
sgn
(
x
)
. For which interval of
x
x
x
is
g
(
x
)
=
−
2
g(x)=-2
g
(
x
)
=
−
2
? a)
[
−
2
,
−
1
)
[-2,-1)
[
−
2
,
−
1
)
b)
[
−
3
,
−
2
)
[-3,-2)
[
−
3
,
−
2
)
c)
[
−
1
,
0
)
[-1,0)
[
−
1
,
0
)
d)
(
−
1
,
0
]
(-1,0]
(
−
1
,
0
]
Browse the problem library