log 3 = 0,477 log 2 = 0,301Nilai log 18 =

log 18=log 3^2 x 2
=2.log 3 + log 2
=2.0,477 + 0,301
=0,954+0,301
=1,255
yg ^3 log 81/27 + ^3log 9 =^3log 3x9
=^3log 3^3
=3x ^3log3
=3x1=3