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Mathematics
Mathematics
Problem
In the expansion of
(
3
x
2
+
y
x
)
6
(3x^{2}+\dfrac{y}{x})^{6}
(
3
x
2
+
x
y
)
6
, determine the coefficient of the term independent of
x
x
x
that contains
y
4
y^{4}
y
4
. a) 270 b) -135 c) 135 d) 90
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