Jawapan

2016-07-07T11:20:36+08:00
Log3 m /log3 3³+log3 n =1
log3 m +log3 n³=3
log3 mn³=3
mn³=3³
m=27/n³-------(1)
mn^9=1---------(2)
subs. (1) into (2),
(27/n³)(n^9)=1
27n^6=1
n^6=1/27
n =0.5774
When n =0.5774,
m =27/(0.5774)³
=140.26