Binomial Summation Alpha Beta (Jee Mains) | ExamDuo

Binomial Summation Alpha Beta (Jee Mains) | ExamDuo

Terms of Binomial Expansion

Medium

Binomial Summation Alpha Beta

If ${\sum\limits_{r = 1}^9 {\left( {\frac{{r + 3}}{{{2^{^r}}}}} \right){.^9}{C_r} = \alpha \left( {\frac{3}{2}} \right)} ^9}-\beta$ , $\alpha ,\beta \in N$ , then (α + β)² is equal to

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