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Term Independent of x

The sum of th...

Question

The sum of the coefficients of $(5 x - 4 y)^{n}$ where n is a positive integer, is

A

0

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B

1

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C

-1

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D

5

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Solution

The correct option is B 1
Sum of the coefficients
$= [5 (1) - 4 (1)]^{n} = (5 - 4)^{n} = 1^{n} = 1$

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Term Independent of x

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