AM-1197

Partial fractions

A Math · Secondary 4 · Hard · Partial fractions

A function is given by

f(x) = \dfrac{5x-2}{x^2(3x+1)}

. Express

f(x)

in partial fractions of the form

\dfrac{A}{x} + \dfrac{B}{x^2} + \dfrac{C}{3x+1}

. What is the value of

A

?

$11$
$-11$
$5$
$-5$

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