# Math Help - Gamma Random Variable

1. ## Gamma Random Variable

how do Γ(a+3) and Γ(a) compare?

do i need to evaluate the integrals, or is there a property that i can use. I only know the
two properties:

1)Γ(a+1)=aΓ(a) which holds for all values of a>0
2)Γ(n)=n-1! when n is an integer

2. Well (I'll put G for the Gamma function), G(a+3)=(a+2)G(a+2)=(a+2)(a+1)G(a+1)=(a+2)(a+1)a G(a) ?

3. Originally Posted by ulysses123
how do Γ(a+3) and Γ(a) compare?

do i need to evaluate the integrals, or is there a property that i can use. I only know the
two properties:

1)Γ(a+1)=aΓ(a) which holds for all values of a>0
2)Γ(n)=n-1! when n is an integer
It would help if you posted the whole question.