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Question 0503a
Sigma Notation
Partial Fractions
Question
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Express
x
−
4
(
x
+
1
)
(
x
−
1
)
\frac{x - 4}{(x + 1)(x - 1)}
(
x
+
1
)
(
x
−
1
)
x
−
4
as partial fractions
A
x
+
1
+
B
x
−
1
.
\frac{A}{x + 1} + \frac{B}{x - 1}.
x
+
1
A
+
x
−
1
B
.
Attempt
A
=
{A=}
A
=
B
=
{B=}
B
=
Answer
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