1) log 1/3 x + log 1/3 y=2
log 1/3 xy = 2
xy = 1/9
log 1/3 1/3 + log 1/3 1/3=2
1+1=2
2) log 1/3 x+log 1/3 y=4
log 1/3 xy = 4
xy=1/81
log 1/3 1/9+log 1/3 1/9=4
2+2=4
