Processing Math: Done

From Förberedande kurs i matematik 1

Using the logarithm law, lga−lgb=lgba, the expression can be calculated as

log312−log34=log3412=log33=1.

Another way is to write 12=34 and use the logarithm law, lg(ab)=lga+lgb,

log312−log34=log3(34)−log34=log33+log34−log34=log33=1.