Sum of real coefficients of binomial expansion

1800SpecialistComplex NumbersAlgebra

Harvard-MIT Mathematics Tournament

Let $S$ be the sum of all the real coefficients of the expansion of $(1+i x)^{2009}$. What is $\log_{2}(S)$?

0 students attempted0% solvedRating 1800

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1800SpecialistComplex NumbersAlgebra

Harvard-MIT Mathematics Tournament

Let $S$ be the sum of all the real coefficients of the expansion of $(1+i x)^{2009}$. What is $\log_{2}(S)$?

0 students attempted0% solvedRating 1800