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Mathematics
Problem
Find the Maclaurin series for
f
(
x
)
=
1
(
1
−
x
)
(
1
+
2
x
)
f(x)=\displaystyle \frac{1}{(1 - x)(1 + 2x)}
f
(
x
)
=
(
1
−
x
)
(
1
+
2
x
)
1
through the
x
3
x^{3}
x
3
term, and state the interval of convergence.
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