log9/log27=
log5+log16-3log2=
prosze plisssss..... /- tokreska ułamkowa
Korzystamy z własności logarytmów:
1. log9/log27= log3^2/log 3^3 = 2log/3log3 = 2/3, logarytmy się skrócą do 1
2.log5+log16-3log2=log(5*16) - log2^3 = log 80 - log 8 = log (80/8) = log 10 = 1, bo podstawa 10 do potęgi 1 daje logarymowane 10
I to wsio :-)
1) log9/log27= log3^2/log 3^3 = 2log3/3log3 = 2/3
2) log5+log16-3log2=log(5*16) - log2^3 = log 80 - log 8 = log (80/8) = log 10 = 1
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Korzystamy z własności logarytmów:
1. log9/log27= log3^2/log 3^3 = 2log/3log3 = 2/3, logarytmy się skrócą do 1
2.log5+log16-3log2=log(5*16) - log2^3 = log 80 - log 8 = log (80/8) = log 10 = 1, bo podstawa 10 do potęgi 1 daje logarymowane 10
I to wsio :-)
1) log9/log27= log3^2/log 3^3 = 2log3/3log3 = 2/3
2) log5+log16-3log2=log(5*16) - log2^3 = log 80 - log 8 = log (80/8) = log 10 = 1