Jawabanmu

2014-08-14T21:33:23+07:00
2^2log75 > 2 x 2log5 2log3 2log5 > 2a bkuadrat....
2014-08-14T21:34:12+07:00
Seingatku seperti ini,
4log75 = 2log75/2log4
=2log(5x15)/2log(2x2)
=2log5+2log15/2log2+2log2
=b+2log(3x5)/1+1
=b+2log3+2log5/2
=b+a+b/2
=a+2b/2