... and Statistical Applications,vol. 187 of Mathematics in Science and Engineering, Academic Press, Boston, Mass, USA, 1992.5 D. S. Mitrinovi´c, J. E. Peˇcari´c,andA.M.Fink,Classical and ... p,gfξgξ.2.17Corollary 2.5. Let x and p be positive n-tuples, then for distinct real numbers l and r,different fromzero and 1, there exists ξ ∈ a, b, such thatξl−rrr ... p; xlΩix, p; xr.2.18Proof. Taking fxxl and gxxr,in2.13, for distinct real numbers l and r,differentfrom zero and 1, we obtain 2.18.Remark 2.6. Since the function ξ...