coefficiient-of-x-60-P-x-1-x-2-1-x-3-1-x-15-1-

Question Number 155533 by mnjuly1970 last updated on 01/Oct/21

c o e f f i c i i e n t o f x^{60} = ?

P = (x - 1) (x^{2} - 1) (x^{3} - 1) \dots (x^{15} - 1)

Answered by qaz last updated on 02/Oct/21

\frac{1}{2 π i} \int_{∣ z ∣= ϵ} \frac{(z - 1) (z^{2} - 1) (z^{3} - 1) \dots (z^{15} - 1)}{z^{61}} dz

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