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Mathematics
Problem
For the function
g
(
x
)
=
2
x
2
−
3
x
−
2
x
2
−
4
g(x)=\dfrac{2x^{2}-3x-2}{x^{2}-4}
g
(
x
)
=
x
2
−
4
2
x
2
−
3
x
−
2
, the set of all real numbers at which
g
g
g
is discontinuous is a)
{
−
2
}
\{-2\}
{
−
2
}
b)
{
−
2
,
2
}
\{-2,\,2\}
{
−
2
,
2
}
c)
{
−
2
,
2
,
−
1
2
}
\{-2,\,2,\,-\dfrac12\}
{
−
2
,
2
,
−
2
1
}
d)
{
−
4
,
4
}
\{-4,\,4\}
{
−
4
,
4
}
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