Pas de rekenregels toe en bereken
- \(\log 4 + \log250\)
- \(\log 2 - \log20\)
- \(\log 5000 - \log5\)
- \(\log 2{,}5 + \log400\)
- \(\log 2 + \log50\)
- \(\log 250 - \log250\)
- \(\log 0{,}5 + \log20000\)
- \(\log 80 + \log12{,}5\)
- \(\log 80 + \log0{,}00125\)
- \(\log 0{,}8 + \log125\)
- \(\log 100 + \log0{,}001\)
- \(\log 400 - \log4\)
Pas de rekenregels toe en bereken
Verbetersleutel
- \(\log 4 + \log250\\ = \log(4 \cdot 250 )
\\ = \log ( 1000)
\\ =3\)
- \(\log 2 - \log20\\ = \log(2 : 20 )
\\ = \log ( 0{,}1)
\\ =-1\)
- \(\log 5000 - \log5\\ = \log(5000 : 5 )
\\ = \log ( 1000)
\\ =3\)
- \(\log 2{,}5 + \log400\\ = \log(2{,}5 \cdot 400 )
\\ = \log ( 1000)
\\ =3\)
- \(\log 2 + \log50\\ = \log(2 \cdot 50 )
\\ = \log ( 100)
\\ =2\)
- \(\log 250 - \log250\\ = \log(250 : 250 )
\\ = \log ( 1)
\\ =0\)
- \(\log 0{,}5 + \log20000\\ = \log(0{,}5 \cdot 20000 )
\\ = \log ( 10000)
\\ =4\)
- \(\log 80 + \log12{,}5\\ = \log(80 \cdot 12{,}5 )
\\ = \log ( 1000)
\\ =3\)
- \(\log 80 + \log0{,}00125\\ = \log(80 \cdot 0{,}00125 )
\\ = \log ( 0{,}1)
\\ =-1\)
- \(\log 0{,}8 + \log125\\ = \log(0{,}8 \cdot 125 )
\\ = \log ( 100)
\\ =2\)
- \(\log 100 + \log0{,}001\\ = \log(100 \cdot 0{,}001 )
\\ = \log ( 0{,}1)
\\ =-1\)
- \(\log 400 - \log4\\ = \log(400 : 4 )
\\ = \log ( 100)
\\ =2\)