Abstract
In this paper, we presented the Raabe's integral and Hermite's formula for q-gamma function Gamma(q)(x), 0 < q < 1. We deduced new proofs of the formulas Gamma(q)'(x)/Gamma(q)(x) and q-Gauss's multiplication using the Hermite's formula of Gamma(q)(x) and H. Jack's technique [11]. Also, we deduced new double inequality of Gamma(q)(x).