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Mathematics
Problem
The term independent of
x
x
x
in the binomial expansion of
(
1
−
1
x
+
3
x
5
)
(
2
x
2
−
1
x
)
8
\left(1 - \frac{1}{x} + 3x^5\right)\left(2x^2 - \frac{1}{x}\right)^8
(
1
−
x
1
+
3
x
5
)
(
2
x
2
−
x
1
)
8
is : (1)
−
400
-400
−
400
(2)
496
496
496
(3)
400
400
400
(4)
−
496
-496
−
496
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