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Mathematics
Mathematics
Problem
Find the coefficient of
x
4
y
10
x^{4}y^{10}
x
4
y
10
in the expansion of
(
5
x
4
y
−
2
y
2
x
)
6
\left(5x^{4}y - \dfrac{2y^{2}}{x}\right)^{6}
(
5
x
4
y
−
x
2
y
2
)
6
.
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