(9/8)^x = (9^x)/(8^x) = [3^(2x)]/[2^(3x)](10/9)^y = (10^y)/(9^y) = [(2^y)*(5^y)]/[3^(2y)](16/15)^z = (16^z)/(15^z) = [2^(4z)]/[(3^z)*(5^z)](9/8)^x×(10/9)^y×(16/15)^z=2{[3^(2x)]/[2^(3x)]}*{[(2^y)*(5^...