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

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-1

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Solution

The correct option is B -1
Putting x = 1 in $(1 + x - 3 x^{2})^{2163}$
We get sum of the coefficients as
$(1 + 1 - 3)^{2163} = (- 1)^{2163} = - 1$

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