证明：∵33^x=2013=33*61 ∴33^(x-1)=61 （两边除以33而得）∵ 61^y=2013=33*61∴61^(y-1)=33 （两边除以66而得）于是[33^(x-1)]^(y-1)=3333^[(x-1)(y-1)]=33(x-1)(y-1)=1xy-x-y+1=1xy-x-y=0两边同时除以xy得1-1/y-1...