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Binomial Theorem - Finding Parameters in Binomial Expansions

Binomial Theorem - Finding Parameters in Binomial Expansions

TGM Original Questions

Given that \({{\left( 1-3x \right)}^{n}}=1-3ax+189{{x}^{2}}-...\), where \(n>0\), find the value of \(n\) and of \(a\).

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Answer:\(a = 7, n = 7\)

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