In Chapter 1, equations (13.5) and (13.6), we defined the binomial coefficientspnwhereis a non-negative integer butmay be negative or fractional. Show thatpn can be written in terms ofΓfunctions as

role="math" localid="1664340642097" (pn)=Γp+1n!Γ(p-n+1)

Short Answer

Expert verified

It has been proved that pn=Γp+1n!Γ(p-n+1).

Step by step solution

01

Given Information

The given binomial coefficient is pn. Where, we need to prove that .

pn=Γ(p+1)n!Γ(p-n+1)

02

Express binomial coefficients in terms of factorials

Write binomial coefficients in terms of factorials.

(pn)=p!n!(p-n)!

03

Express binomial coefficients in terms of factorials

Express Gamma function in terms of factorials.

Γ(p+1)=p!

04

Combine the two equations

Combine the two equations to find the answer.

pn=Γ(p+1)n!Γ(p-n+1)

Therefore, the equation is proved.

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