Show that nC1 + nC5 + nC9 + ... = 1/2 (2n-1 + 2n/2 sin (n pi/4))

Question

Question

Show that

ⁿC₁ + ⁿC₅ + ⁿC9 + ... = 1/2 (2ⁿ^-1 + 2^n/2 sin (n pi/4))

math Statistics-And-Probability

Answer 1

Answer #1

Answer 2

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