Oblicz przybliżona wartość logarytmu, jeśli log4≈0,6 oraz log5≈0,7 1) log2,5= 2) log5/4= 3) log20=
log2,5=log(10:4)=log10-log4=1-0,6=0,4
log5/4=log5-log4=0,7-0,6=0,1
log20=log(5*4)=log5+log4=0,7+0,6=1,3
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log2,5=log(10:4)=log10-log4=1-0,6=0,4
log5/4=log5-log4=0,7-0,6=0,1
log20=log(5*4)=log5+log4=0,7+0,6=1,3