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Mathematics
Problem
State whether
x
=
2
x = 2
x
=
2
is included in the domain of the function
f
(
x
)
=
x
2
−
9
x
2
−
4
f(x)=\dfrac{x^{2}-9}{x^{2}-4}
f
(
x
)
=
x
2
−
4
x
2
−
9
and justify your answer in one sentence.
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