Wiedząc, że log 4 = 0,602 oblicz log 80.
przekształcam założenia
log4=log 2^2=2log 2
2log2=0,602 /:2
log 2 =0,301
log 80 = log (8*10)=log 8 + log 10 = log 2^3 + 1 =3log 2 + 1= 3*0,301 + 1=0,903+1=1,903
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przekształcam założenia
log4=log 2^2=2log 2
2log2=0,602 /:2
log 2 =0,301
log 80 = log (8*10)=log 8 + log 10 = log 2^3 + 1 =3log 2 + 1= 3*0,301 + 1=0,903+1=1,903