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The sum of the last eitht coefficients i...

The sum of the last eitht coefficients in the
expansion of `(1 + x)^(15)` , is

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Answer (3)
Since we know that the binomial coefficients equidistant from the beginning and the end are equal
So, `.^(15)C_(8)+.^(15)C_(9)+ . . . .+.^(15)C_(15)=(2^(15))/(2)=2^(14)`
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