The sum of the coefficients in the expansion of ${(1 + x - 3 x^{2})}^{2163}$

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-1

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Solution

The correct option is A -1
To get the sum of coefficients put $x = 1$
Hence sum of the coefficient in the expansion of $(1 + x - 3 x^{2})^{2163}$ is $= (1 + 1 - 3)^{2163} = - 1$

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