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Mathematics
Mathematics
Problem
For a rational function
f
(
x
)
=
P
(
x
)
Q
(
x
)
f(x)=\dfrac{P(x)}{Q(x)}
f
(
x
)
=
Q
(
x
)
P
(
x
)
, where
P
(
x
)
P(x)
P
(
x
)
and
Q
(
x
)
Q(x)
Q
(
x
)
are polynomials, the domain of
f
f
f
is a) All real numbers for which
P
(
x
)
≠
0
P(x)\neq0
P
(
x
)
=
0
b) All real numbers c) All real numbers for which
Q
(
x
)
≠
0
Q(x)\neq0
Q
(
x
)
=
0
d) All real numbers for which
P
(
x
)
≠
0
P(x)\neq0
P
(
x
)
=
0
and
Q
(
x
)
≠
0
Q(x)\neq0
Q
(
x
)
=
0
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