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If the sum of the coefficients in the expansion of (1−3x+10x2)n is a and if the sum of the coefficients in the expansion of (1+x2)n is b, then |
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Answer» If the sum of the coefficients in the expansion of (1−3x+10x2)n is a and if the sum of the coefficients in the expansion of (1+x2)n is b, then |
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